Contents

Before Getting Started...Watch Face Items

Navigating Between Modes

Mode Overview

Using the Crown

Hand and Day Indicator Movement

Solar Charging

Viewing the Face in the Dark

Useful Features

Time AdjustmentTime Adjustment Using a Time Signal

OverviewAppropriate Signal Reception LocationTime Calibration Signal ReceptionRangesAuto Time Calibration Signal ReceiveManual Time Signal ReceiveSignal Reception Precautions

Using Watch Operations to Adjust the TimeSetting

Selecting Your Home City’s Time ZoneAdjusting the Time and Day SettingConfiguring the Summer Time Setting(Home City)

Checking the Last Time Adjustment Result

Using the Watch in a Medical Facility orAircraft

MA1902-EA © 2019 CASIO COMPUTER CO., LTD.

Using Mobile Link with a MobilePhone

Getting Ready

A Install the required app on your phone.B Configure Bluetooth settings.C Pair the watch with a phone.

Auto Time Adjustment

Configuring World Time Settings

Adjusting Hand and Day Indicator Alignment

Phone Finder

Configuring Watch Settings

Changing the Home City Summer Time Setting

Checking the Watch Charge Level

ConnectionConnecting with a PhoneCanceling a Connection with a PhoneUsing the Watch in a Medical Facility orAircraftUnpairingIf you purchase another phone

Dual TimeSelecting a Time Zone

Configuring the Summer Time Setting (DualTime)

Swapping the Home City Time and World Time(Dual Time)

StopwatchMeasuring Elapsed Time

Using Flyback Timing

Starting a Elapsed Time MeasurementOperation from the Calendar Mode (DirectStart)

TimerSetting the Timer Start Time

Using the Timer

AlarmConfiguring Alarm Settings

Turning Off the Alarm

Adjusting Hand and Day IndicatorAlignment

Adjusting Hand and Day Indicator Alignment

Moving to Another Time Zone

Other InformationCity (Time Zone) List

Supported Phones

Specifications

Mobile Link Precautions

Copyrights and Registered Copyrights

Troubleshooting

Operation Guide 5588

1

Before GettingStarted...

This section provides an overview of the watchand introduces convenient ways it can beused.

Note

● The illustrations included in thisoperation guide have been created tofacilitate explanation. An illustrationmay differ somewhat from the item itrepresents.

Watch Face Items

⑦

⑨

⑧

②

① ③

④⑤

⑥

⑩

⑪

A Battery levelThe battery level is indicated by the modehand after you enter the Calendar Mode.

B Day of weekIn the Calendar Mode, the mode hand pointsto the day of the week in the Home City.

C [ST]In the Stopwatch Mode, the mode hand pointsto [ST].

D [TR]In the Timer Mode, the mode hand points to[TR].

E [AL]In the Alarm Mode, the mode hand points to[AL].

F Summer time settingThe mode hand points to the current summertime setting.

G [C]The second hand points to this mark whilethere is a connection between the watch anda phone.

H Alarm settingsIn the Alarm Mode, the second hand indicatesif the alarm is enabled or disabled.[ON]: Alarm enabled[OFF]: Alarm disabled

I Last signal receive result/auto timeadjustment setting status

The second hand points to [Y(YES)] or[N(NO)] to indicate the result of the last autotime adjustment operation based on timesignal reception or connection with a phone.[Y(YES)]: Auto time adjustment successful[N(NO)]: Auto time adjustment failedThe second hand points to [Y(YES)] or[N(NO)] to indicate if auto time adjustment isenabled or disabled.[Y(YES)]: Auto time adjustment enabled[N(NO)]: Auto time adjustment disabled

J [RC]The second hand points to this mark whilecalibration signal reception is in progress.

K [A] / [P]When configuring time settings in your currentlocation (Home City), the second handindicates whether it is an a.m. time or a p.m.time.[A]: AM[P]: PM

Navigating Between ModesPress (C) to cycle between modes.● In any mode, hold down (C) for at least one

second to enter the Calendar Mode.

CC

CC

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Timer Mode

Stopwatch ModeAlarm Mode

Calendar Mode

Charge level

Day of week

Mode hand

● Connecting with a PhoneHold down (B) for at least 2.5 seconds until thesecond hand points to [C] twice.● To disconnect, press any button.

B

30 30

Any button

After connectionBefore connection

Operation Guide 5588

2

Mode Overview● Calendar ModeThe main hour, minute, and second handsindicate the current time.The small hour and minute hands showanother time (Dual Time).

30

③④②

①

Last Time Adjustment Result

A Day of the week at current location

B Dual Time hour

C Dual Time minute

D Dual Time hour (24-hour hand)The hand points to the A-side for a.m. times,and to the P-side for p.m. times.Time Adjustment Using a Time CalibrationSignalHold down (B) for at least 0.5 seconds until thesecond hand points to [RC].● A manual time calibration signal receive

operation cannot be performed while thewatch is paired with a phone.

Swapping the Current Location Time andDual TimeHold down (A) for about three seconds.Checking the Charge LevelImmediately after you press (C) to return to theCalendar Mode, you can check the batterylevel by noting the mode hand position.l Checking the Charge LevelStarting a Stopwatch Elapsed TimeOperationPress (A) twice in succession.Connecting with a Paired Phone to Adjustthe Watch’s TimeHold down (B) for at least 0.5 seconds until thesecond hand points to [C].Searching for a Paired PhoneHold down (B) for about 5 seconds.

● Stopwatch ModeThe second hand, and the small hour andminute hands indicate the elapsed stopwatchtime.● The main hour and minute hands indicate

the current time.

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③

④

②

①Start/Stop

Reset/Flyback

A Stopwatch seconds

B Stopwatch hours

C Stopwatch minutes

D Stopwatch hours (24-hour time)The hand points to the A-side for hours 0through 12, and to the P-side for hours 12through 24.● Timer ModeThe second hand, and the small hour andminute hands indicate the current countdowntime.● The main hour and minute hands indicate

the current time.

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③

④

②

①Start/Stop

Reset

A Timer seconds

B Timer hours

C Timer minutes

D Timer hours (24-hour time)The hand points to the A-side for hours 0through 12, and to the P-side for hours 12through 24.

● Alarm ModeThe small hour and minute hands indicate thealarm time.The second hand indicates the alarm enabled/disabled setting.● The main hour and minute hands indicate

the current time.

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③

④

②

①

Enabling/Disabling the Alarm

A Alarm enabled/disabled

B Alarm hour

C Alarm minute

D Alarm hour (24-hour time)The hand points to the A-side for a.m. times,and to the P-side for p.m. times.

Using the CrownThe watch’s crown is a screw-in (screw lock)type. To use the crown, you first need to rotateit towards you (leftwards) to loosen it.

Loosen

Crown

Important!

● To prevent loss of water resistanceand/or damage due to impact, be sureto push the crown in to its normalposition after you are finished using it.

● When pushing the crown back in, takecare not to apply too much force.

Operation Guide 5588

3

● Fast Forward/Fast Reverse

Second click

First click

Normal timekeeping

Crown

After pulling out the crown to the first or secondclick, rotating it quickly in succession in eitherdirection will start a fast forward or fast reverseoperation. While a fast forward operation is inprogress, quickly rotating the crown insuccession again will increase the speed evenfurther.● Stopping Fast Forward/Fast ReverseRotate the crown in the direction opposite thatof the ongoing operation or press any button.

Note

● If you do not perform any operation forabout two minutes after pulling out thecrown, crown operations willautomatically become disabled. If thathappens, push the crown back in andthen pull it out again.

Hand and Day IndicatorMovement

30

Mode hand

Day indicator

● Mode Hand and Day IndicatorMovement

Changing the day setting of the watch will alsocause the mode hand to move.

● Day● It can take anywhere from about 10 to 40

seconds for the day indicator to changeafter timekeeping reaches midnight. Themode hand moves as the day indicatorchanges.

● The day may not be indicated correctlywhile the watch’s crown is pulled out.

Solar ChargingThis watch runs on power supplied from arechargeable (secondary) battery that ischarged by a solar panel. The solar panel isintegrated into the face of the watch, andpower is generated whenever the face isexposed to light.

● Charging the WatchWhen you are not wearing the watch, put it ina location where it is exposed to bright light.

While you are wearing the watch, make surethat its face (solar panel) is not blocked fromthe light by the sleeve of your clothing. Powergeneration efficiency is reduced even whenthe face of the watch is blocked only partially.

NOYES

Important!

● Depending on light intensity and localconditions, the watch may become hotto the touch when exposed to light forcharging. Take care to avoid burninjury after charging. Also, avoidcharging the watch under high-temperature conditions like the onesdescribed below.ーOn the dashboard of a vehicle

parked in the sunーNear an incandescent light bulb or

other source of heatーUnder direct sunlight or in other hot

areas for long periods

● Checking the Charge LevelYou can determine the watch’s current chargelevel by checking the position of the batteryindicator hand.

30

①②③④

A Fully charged

B Charged

C Low

D Dead

● Remaining Charge and Dead BatteryYou can determine if the charge level is low bychecking the hand movement. Functionsbecome disabled as battery power goes low.

Important!

● Should the battery go low or go dead,expose the face (solar panel) to light assoon as possible.

Note

● Exposing the watch face to light afterthe battery goes dead will cause thesecond hand to revolvecounterclockwise until it stops atsecond 57. This indicates charginghas started.

Low Battery PowerThe second hand jumps at two-secondintervals.

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Second hand

Operation Guide 5588

4

Dead BatteryAll hands and the day indicator are stopped.

1

● Charging Time GuidelinesThe table below shows guidelines forapproximate charging times.Required Charging Time for 1-day UseLight Intensity Approximate Charging Time

Highp

Low

A 8 minutesB 30 minutesC 48 minutesD 8 hours

Time Required to Achieve Next ChargeLevel

Light IntensityApproximate Charging TimeCharge Level

1Charge Level

2

Highp

Low

A 2 hours 22 hoursB 5 hours 79 hoursC 8 hours 126 hoursD 87 hours -

Charge Level 1 :Time from dead battery until hand movementstartsCharge Level 2 :Time from hand movement start until a fullcharge

Light Intensity

A Sunny day, outdoors (50,000 lux)

B Sunny day, near a window (10,000 lux)

C Overcast day, near a window (5,000 lux)

D Indoor fluorescent lighting (500 lux)

Note

● Actual charging time depends on thelocal charging environment.

● Power SavingLeaving the watch in a dark location for aboutone hour between the hours of 10 p.m. and5:50 a.m. will cause the second hand to stop,and the watch to enter Level 1 power saving.If the watch is left in this condition for six orseven days, all hands will stop and the watchwill enter Level 2 power saving.Level 1 :Basic timekeeping functions are operational.Level 2 :Only the day indicator is operational.

Note

● Note that the watch also may enter thepower saving state if its face is blockedfrom light by your sleeve while you arewearing it.

● The watch will enter power savingwhen it is in one of the modes below.ーCalendar ModeーStopwatch Mode (reset to all zeros)ーTimer Mode (timer start time

displayed)

● Recovering from Power SavingOperation

Press any button, perform a crown operation,or place the watch in a well-lit area to recoverfrom power saving.

Viewing the Face in the DarkThe watch has an LED light that you can useto illuminate the display for about 1.5 secondsfor viewing in the dark. When turned on,illumination becomes gradually brighter andthen gradually dimmer.

● Turning On IlluminationPressing (L) turns on illumination.

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● Illumination will turn off automatically if thealarm starts to sound.

● Illumination is disabled while the hands aremoving at high speed.

Note

● You can also use G-SHOCKConnected to change the illuminationduration.l Configuring Watch Settings

Useful FeaturesPairing the watch with your phone makes anumber of the watch’s features easier to use.Auto Time Adjustmentl Auto Time Adjustment

12:30

Selection of More Than 300 World TimeCitiesl Configuring World Time Settings

In addition, a number of other watch settingscan be configured using your phone.

For transfer data to a watch and toconfigure settings, you first need to pairthe watch with your phone.l Getting Ready● Your phone needs to have the CASIO “G-

SHOCK Connected” app installed to pairwith the watch.

Time AdjustmentYour watch can obtain date and timeinformation by connecting with a phone and byreceiving time signals, which it uses to adjustits settings.

Important!

● Disable auto time adjustmentwhenever you are inside an aircraft orin any other area where radio wavereception is prohibited or restricted.l Using the Watch in a Medical

Facility or Aircraft

Operation Guide 5588

5

Referring to the information below, configurethe time setting in accordance with the methodthat suits your own lifestyle.

Do you use a phone?Time adjustment by connecting with yourphone is recommended.l Auto Time Adjustment

12:30

Can you receive a time signal in your area?While the watch’s Home Time City settingis one where a time signal can bereceived, the watch’s time and daysettings can be adjusted in accordancewith the signal.l Time Calibration Signal Reception

Rangesl Selecting Your Home City’s Time Zone

Other than the above.If you are unable to connect with a phoneand are unable to receive a time signal,you can perform watch button operationsto adjust its time setting.l Using Watch Operations to Adjust the

Time Setting

30

Time Adjustment Using aTime Signal

OverviewThe watch’s time and day settings can beconfigured in accordance with a received timecalibration signal.

Important!

● In order to make it possible for thecurrent time setting to be adjustedcorrectly based on time calibrationsignal reception, you need to specifythe time zone where you are using thewatch.

● However, if the watch was unable toconnect with a phone even once fortime adjustment during the previousday while connection with a phone isbeing used, it will automatically try toreceive a time calibration signal.

● Disable auto time adjustmentwhenever you are inside an aircraft orin any other area where radio wavereception is prohibited or restricted.l Using G-SHOCK Connected to

Configure Settingsl Using Watch Operations to

Configure Settings

Note

● Areas where time calibration signalreception is supported are limited.When the watch in an area where timecalibration signal reception is notpossible, connect with a phone toadjust time and day settings.l Time Calibration Signal Reception

Ranges● If the watch does not indicate the

correct time even after it receives atime calibration signal, correct thehand and day indicator positions.l Using G-SHOCK Connected to

Correct Hand Positionsl Using Watch Operations to Correct

Hand Positions

Appropriate Signal ReceptionLocation

A time calibration signal can be received whilethe watch is near a window.● Position the watch so its 12 o’clock side is

facing the window.● Keep metal objects away from the watch.● Do not move the watch.● Do not perform any operation on the watch.

12 o'clock

Note

● You may experience time calibrationsignal reception problems in the areasdescribed below.ーAmong or near buildingsーWhile riding in a vehicleーNear household appliances, office

machines, mobile phones, etc.ーOn a construction site, in an airport,

or any other location where radiowave interference occurs

ーNear high-voltage linesー In mountainous areas or behind a

mountain

Operation Guide 5588

6

Time Calibration Signal ReceptionRanges

Time calibration signal reception is supportedin the areas shown below.

● Japan Time Calibration Signal (JJY)

500 kilometers

500 kilometers

1,000 kilometers

1,000 kilometers Tokyo

FukushimaFukuoka/

Saga

● Chinese Time Calibration Signal (BPC)

500 kilometers

1,500 kilometers

Chengdu

Shangqiu

Hong Kong

Shanghai

Beijing

Changchun

● U.S. Time Calibration Signal (WWVB)

600 miles (1,000 kilometers)

2,000 miles (3,000 kilometers)

Los AngelesDenver

Fort Collins

Chicago

New York

● U.K. (MSF) and German (DCF77) TimeCalibration Signal

The Anthorn signal is receivable within this area.

500 kilometers

1,500 kilometers

MainflingenAnthorn

Note

● Even if you are within the normalreception range of a time calibrationsignal, reception may be madeimpossible by the following factors:geographic contours, weather, theseason, the time of day, wirelessnoise.

Auto Time Calibration SignalReceive

An automatic time calibration signal receiveoperation is performed and the time and daysettings are adjusted between midnight and5:00 a.m. Once a signal receive operation issuccessful, no more auto receive operationsare performed that day.Getting ReadyEnter the Calendar Mode.l Navigating Between Modes

30

Place the watch near a window or some otherlocation appropriate for signal reception.● The second hand points to [RC] while the

receive operation in progress.● When the receive operation is successful,

the time and day settings will be adjustedautomatically.

Note

● Reception takes anywhere from abouttwo minutes to about 10 minutes. It cantake as long as 20 minutes.

● If the watch connects with a phone andadjusts its time setting, the watch willnot perform auto receive of a timecalibration signal for the rest of that dayor the next day.

Manual Time Signal Receive

1. Place the watch near a window or someother location appropriate for time signalreception.

2. Enter the Calendar Mode.l Navigating Between Modes

3. Hold down (B) for at least 0.5 seconds untilthe second hand points to [RC].This indicates that the receive operationhas started. After the receive operation iscomplete, the watch’s time and daysettings will be adjusted accordingly.

30

Note

● The receive operation takes anywherefrom about two minutes to about 10minutes. It can take as long as 20minutes.

● Time calibration signal reception isbetter at night than during the day.

● A time calibration signal operationcannot be received while the watch ispaired with a phone.

Signal Reception Precautions● When the watch is unable to adjust its time

in accordance with a calibration signal forsome reason, average timekeepingaccuracy is within ±15 seconds per month.

● Note that an internal decoding process thewatch performs after it receives a signalmay cause the time setting to be slightly off(by less than one second).

● Time calibration signal reception is notpossible under the conditions describedbelow.ーWhile battery power is lowーWhile the watch is in the Stopwatch Mode,

Timer Mode, or Alarm ModeーAt Power Saving Level 2ーWhile the crown is pulled outーWhile a timer countdown operation is in

progressーWhile the Home City setting is a time zone

where time signal reception is notpossible

ーWhile the watch is outside the time signalreception range

● When the receive operation is successful,the time and/or day settings will be adjustedautomatically. Summer time will not beapplied correctly in the case describedbelow.ーWhen the summer time start date and

time, end date and time, or other rules arechanged by authorities

● If your watch is connected with a phone,settings must be configured so G-SHOCKConnected can acquire locationinformation. Even if you are in an area thatis within the reception range of a time signal,reception will not be performed if settingsare configured in a way that makes signalreception impossible.

● As of July 2018, China does not observesummer time. If China starts to observesummer time in the future, the timedisplayed by the watch for China may not becorrect.

Operation Guide 5588

7

Using Watch Operations toAdjust the Time Setting

Selecting Your Home City’s TimeZone

Use the procedure in this section to select thetime zone of the city you want to use as yourHome City.

Important!

● If you do not specify the time zonewhere you are using the watch, thecurrent time setting will not be correctafter it is adjusted based on a timecalibration signal.

1. Pull out the crown to the second click.The second hand indicates the currentlyselected time zone, while the mode handindicates the current summer time setting.● The time zone is indicated as a time

offset. ±0 hours is indicated when thesecond hand is at 12 o’clock, with otheroffsets indicated when it is to the left andright of 12 o’clock. For information abouttime zone positions, go to the sectionbelow.l City (Time Zone) List

Tokyo (+9 offset)

30

Crown

Time zone (+9 position)

Summer time setting

2. Rotate the crown to change the time zone.3. Push the crown back in to its normal

position.

Adjusting the Time and Day Setting

1. Pull out the crown to the second click.The second hand will point to the currentlyselected time zone.● The mode hand will point to the summer

time setting for the currently selectedHome City.

30

Crown

Time zone

Summer time setting

2. Hold down (C) for at least one second.This causes the second hand to move to“A” (am) or “P” (pm), which indicates thehour and minute setting mode.

3. Rotate the crown to change the hour andminute settings.● While watching if the second hand

pointed at A (a.m.) or P (p.m.), set thedesired time.

4. Press (C).This enables the year ten’s digit settingoperation.

5. Rotate the crown to move the secondhand to the desired setting for the yearten’s digit.

80 40

90 30

20

5070

10

60

00Year (10’s digit)

6. Press (C).This enables the year one’s digit settingoperation.

7. Rotate the crown to move the secondhand to the desired setting for the yearone’s digit.

8 4

9 3

2

57

1

6

0Year (one’s digit)

8. Press (C).This changes to the month settingoperation.

9. Rotate the crown to change the month.

1011 12

8 4

9 3

2

57

1

6Month

10. Press (C).The mode hand will move slightly,indicating that the day setting operation isenabled.● Changing the day setting will cause the

mode hand to rotate repeatedly.l Hand and Day Indicator Movement

11. Rotate the crown to change the day.

30

Day

12. On a time signal at the top of a minute,push the crown back in.

Operation Guide 5588

8

Configuring the Summer TimeSetting (Home City)

The watch’s current time setting can bechange to summer time when required.[STD]: The watch always indicates standardtime.[DST]: The watch always indicates summertime.

Important!

● If the Home City time zone is an areawhere time calibration signal receptionis possible, you can select [AT] (Auto)for the summer time setting. While [AT]is specified as the summer timesetting, the first time calibration signalreceive operation after the Home Cityenters the summer time period willcause the watch’s time setting toswitch to summer time. The first timecalibration signal receive operationafter the end of the summer time periodis reached will cause the watch’s timesetting to switch to standard time.For information about areas wheretime calibration signals can bereceived, go to the section below.l City (Time Zone) List

1. Pull out the crown to the second click.The second hand will point to the currentlyselected time zone.● The mode hand will point to the summer

time setting for the currently selectedHome City.

2. Hold down (A) for about one second.Each time you hold down (A) for about onesecond, the summer time setting will cycleto the next available option.

30

3. Push the crown back in to its normalposition.

Checking the Last TimeAdjustment Result

1. Enter the Calendar Mode.l Navigating Between Modes

30

2. Press (B).The second hand will indicate the last timeadjustment operation result. The watchhands will return to indicating the currenttime if you do not perform any operationfor nine or ten seconds.[Y(YES)]: Last time adjustment operationsuccessful.[N(NO)]: Last time adjustment operationfailed.

30

Second hand

Note

● Even if there was a successful timecalibration signal receive operation orconnection with a phone, the secondhand will point to [N(NO)] if youadjusted the time and/or date settingmanually.

Using the Watch in a MedicalFacility or Aircraft

Whenever you are in a hospital, on an aircraft,or in any other location where auto timecalibration signal receive or connection with aphone may cause problems, you can performthe procedure below to disable suchoperations. To re-enable auto timeadjustment, perform the same operationagain.

1. Enter the Calendar Mode.l Navigating Between Modes

30

2. Press (B).The second hand will indicate the lastreceive result for nine or ten seconds.

30

3. Within 10 seconds after pressing (B)above, pull out the crown to the first click.● If more than 10 seconds elapse before

you pull out the crown after you press(B), the second hand will return toindicating seconds. If this happens,press (B) again.

4. Rotate the crown to disable auto timeadjustment.[Y(YES)]: Auto time adjustment enabled.[N(NO)]: Auto time adjustment disabled.

30

Crown

5. Push the crown back in.

Note

● If the watch is paired with a phone, G-SHOCK Connected can be used todisable auto time adjustment.l Using G-SHOCK Connected to

Disable Auto Time Adjustment

Operation Guide 5588

9

Using Mobile Link witha Mobile Phone

While there is a Bluetooth connectionbetween the watch and phone, the watch timesetting is adjusted automatically. You can alsochange the watch’s other settings.

Note

● This function is available only while G-SHOCK Connected is running on thephone.

● This section describes watch andphone operations.X : Watch operationY : Phone operation

Getting Ready

A Install the required app on yourphone.

In Google Play or the App Store, search for theCASIO “G-SHOCK Connected” app andinstall it on your phone.

B Configure Bluetooth settings.Enable the phone’s Bluetooth.

Note

● For details about setting procedures,see your phone documentation.

C Pair the watch with a phone.Before you can use the watch in combinationwith a phone, you first need to pair them.

1. Move the phone to be paired with close to(within one meter of) the watch.

2. Y Tap the “G-SHOCK Connected” icon.3. Y Perform the operation shown on the

screen of the phone to be paired with.● If a pairing prompt message appears,

perform the operation shown on thephone screen.

● If pairing fails for some reason, thewatch will return to the state in step 1 ofthis procedure. Perform the pairingprocedure again from the beginning.

Note

● The first time you start up G-SHOCKConnected, a message will appear onyour phone asking if you want toenable location informationacquisition. Configure settings to allowbackground use of locationinformation.

Auto Time AdjustmentThe watch will connect with a phone at presettimes each day and adjust its time settings.● Using Auto AdjustYour watch adjusts its time setting four timesa day according to a preset schedule. If youleave the watch in the Calendar Mode, it willperform the adjustment operationautomatically as you go about your daily life,without any operation required by you.

12:30

Important!

● The watch may not be able to performauto time adjustment under theconditions described below.ーWhile the watch is too far away from

its paired phoneーWhile communication is not possible

due to radio interference, etc.ーWhile the phone is updating its

systemーWhile G-SHOCK Connected is not

running on the phone

Note

● If the watch does not indicate thecorrect time even if it is able to connectwith a phone, adjust the hand and dayindicator positions.l Adjusting Hand and Day Indicator

Alignment● If there is a World Time City specified

with G-SHOCK Connected, its time willalso be adjusted automatically.

● The watch will connect with the phoneand perform auto time adjustment ataround 12:30 a.m., 6:30 a.m., 12:30p.m. and 6:30 p.m. The connection isautomatically terminated after autotime adjustment is complete.

● Triggering Immediate Time AdjustmentThe watch’s time setting will be adjustedautomatically whenever you establish aconnection between the watch and a phone.Whenever you want to adjust the watch’s timesetting based on your phone's time, performthe procedure below to connect with a phone.

1. Move the phone close to (within one meterof) the watch.

2. X Enter the Calendar Mode.l Navigating Between Modes

3. X Hold down (B) for at least 0.5 secondsuntil the second hand points to [C].Release the button as soon as the secondhand points to [C].When the watch connects with a phone,the second hand will normally move to[Y(YES)] and then the watch’s time settingwill be adjusted.● The connection is terminated

automatically after time adjustment iscomplete.

30

Operation Guide 5588

10

Configuring World TimeSettings

Specifying a World Time City with G-SHOCKConnected causes the watch’s World TimeCity to change accordingly. The standardtime/summer time setting of the World Timewill be adjusted automatically without anywatch operation required by you.

30

Note

● G-SHOCK Connected World Time letsyou select from among approximately300 cities as the World Time City.

● Selecting a World Time City

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Perform the operation shown on thephone screen. The World Time setting willbe reflected on the watch.● You can determine whether a World

Time is a.m. or p.m. by checking theposition of the small 24-hour hand.

30

World Time hour (24-hour)

World Time hour and minute

● Configuring the Summer Time Setting

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Perform the operation shown on thephone screen to select a summer timesetting.● “Auto”

The watch switches between standardtime and summer time automatically.

● “OFF”The watch always indicates standardtime.

● “ON”The watch always indicates summertime.

Note

● While the summer time setting is“Auto”, the watch will switch betweenstandard time and summer timeautomatically. You do not need toswitch between standard time andsummer time manually. Even if you arein an area that does not observesummer time, you can leave thewatch’s summer time setting as “Auto”.

● Changing the time setting manuallywith a watch operation will cancel autostandard time/summer time switching.

● G-SHOCK Connected screen showsinformation about summer timeperiods.

● Swapping Your World Time and HomeTime

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Perform the operation shown on thephone screen to swap your Home Timewith your World Time.For example, if your Home City is Tokyoand the World Time City is New York, theywill be swapped as shown below.

30 30

World Time City (New York)

World Time City (Tokyo)

Home City (New York)Home City (Tokyo)

After swappingBefore swapping

Note

● Auto time adjustment does not work for24 hours after swapping of the HomeTime and World Time.

Operation Guide 5588

11

Adjusting Hand and DayIndicator Alignment

If the hands and/or date indicator are out ofalignment even though auto time adjustmentis being performed, use G-SHOCKConnected to adjust them.

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Perform the operation shown on thephone screen to correct hand and dayindicator alignment.

Phone FinderYou can use phone finder to trigger a tone onthe phone to make it easy to find. The tone isforced to sound even if the phone is in vibratemode.

Important!

● Do not use this function in areas wherephone call tones are restricted.

● The tone sounds at a high volume. Donot use this function when listening tophone output over earphones.

1. X If the watch is connected with a phone,press any button to terminate theconnection.

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DisconnectedConnected

2. X Hold down (C) for at least one second.This will cause the watch to enter theCalendar Mode.

3. X Hold down (B) for at least five secondsuntil the second hand points to [C].A connection will be established betweenthe watch and phone, and then thephone’s ringtone will sound.● It will take a few seconds before the

phone tone sounds.

4. X Press any button to stop the tone.● You can press any watch button to stop

the phone tone, but only during the first30 seconds after it starts to sound.

Configuring Watch SettingsYou can use G-SHOCK Connected to specifythe amount of time until the Bluetoothconnection is automatically terminated andthe illumination duration, and to configureother settings.

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Select the setting you want to changeand then perform the operation shown onthe phone screen.

Changing the Home CitySummer Time Setting

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Perform the operation shown on thephone screen to change your Home Citysummer time setting.

Checking the Watch ChargeLevel

Use the procedure below to check the currentcharge level with G-SHOCK Connected.

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Use G-SHOCK Connected to check thecharge level.

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Connection

Connecting with a PhoneThis section explains how to establish aBluetooth connection with a phone that ispaired with the watch.● If the watch is not paired with the phone you

want to connect with, refer to the informationbelow and pair them.lC Pair the watch with a phone.

1. Move the phone close to (within one meterof) the watch.

2. X Hold down (B) for at least 2.5 secondsuntil the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

Important!

● If you have problems establishing aconnection, it could mean that G-SHOCK Connected is not running onthe phone. On the phone’s HomeScreen, tap the “G-SHOCKConnected” icon. After the app startsup, hold down the watch’s (B) buttonfor at least 2.5 seconds.

Note

● The connection will be terminated ifyou do not perform any operation onthe watch or phone for a fixed amountof time.To specify the connection limit time,perform the following operation with G-SHOCK Connected: “Watch settings”n “Connection time”. Next, select asetting of 3 minutes, 5 minutes, or 10minutes.

Canceling a Connection with aPhone

Pressing any button terminates the Bluetoothconnection and returns the second hand to itsnormal operation.

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DisconnectedConnected

Using the Watch in a Medical Facilityor Aircraft

Whenever you are in a hospital, on an aircraft,or in any other location where auto timecalibration signal receive or connection with aphone may cause problems, you can performthe procedure below to disable suchoperations. To re-enable auto timeadjustment, perform the same operationagain.

1. Y Tap the “G-SHOCK Connected” icon.2. X Hold down (B) for at least 2.5 seconds

until the second hand points to [C] twice.This establishes a connection betweenthe watch and phone.

3. Y Perform the operation shown on thephone screen to enable or disable autotime adjustment.

Unpairing

1. X If the watch is connected with a phone,press any button to terminate theconnection.

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DisconnectedConnected

2. Y Tap the “G-SHOCK Connected” icon.3. Y Perform the operation shown on the

phone screen to unpair.

If you purchase another phoneYou need to perform the pairing operationwhenever you want to establish a Bluetoothconnection with a phone for the first time.lC Pair the watch with a phone.

Dual TimeDual Time lets you look up the current time invarious time zones around the globe.

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Operation Guide 5588

13

Selecting a Time ZoneUse the procedure below to specify the timezone where the city whose time you want touse for Dual Time is located.

1. Enter the Calendar Mode.l Navigating Between Modes

2. Pull out the crown to the first click.The second hand indicates the currentDual Time zone, while the mode handindicates the current Dual Time summertime setting.● The time zone is indicated as a time

offset. ±0 hours is indicated when thesecond hand is at 12 o’clock, with otheroffsets indicated when it is to the left andright of 12 o’clock. For information abouttime zone positions, go to the sectionbelow.l City (Time Zone) List

New York (-5 offset)

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Crown

Time zone (55 position)

Summer time setting

3. Rotate the crown to change the time zone.The Dual Time hour and minute handsindicate the current time in the selectedtime zone.

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CrownDual Time hour and minute

Dual Time 24-hour

4. Push the crown back in.

Configuring the SummerTime Setting (Dual Time)

The watch’s current time setting can bechange to summer time when required.[STD]: The watch always indicates standardtime.[DST]: The watch always indicates summertime.

Important!

● If the Dual Time zone is one area wheretime calibration signal reception ispossible, you can select [AT] (Auto) forthe summer time setting. While [AT] isspecified as the summer time setting,the first time calibration signal receiveoperation before or after the summertime period is entered will cause theDual Time setting to switchautomatically between summer timeand standard time.For information about areas wheretime calibration signals can bereceived, go to the section below.l City (Time Zone) List

1. Enter the Calendar Mode.l Navigating Between Modes

2. Pull out the crown to the first click.The second hand will point to the currentlyselected time zone.● The mode hand will point to the summer

time setting of the Dual Time.3. Hold down (A) for about one second.

Each time you hold down (A) for about onesecond, the summer time setting will cycleto the next available option.

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4. Push the crown back in to its normalposition.

Note

● While [UTC] is selected as the city, youwill not be able to change or check thesummer time setting.

Swapping the Home CityTime and World Time (DualTime)

You can swap your Home City time with yourDual Time by holding down (A) for about threeseconds in the Calendar Mode.

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After swappingBefore swapping

Dual Time

Dual Time

Home Time

Home Time

● If a swapping operation causes a change inthe day indicator setting, the mode hand willrotate repeatedly.l Hand and Day Indicator Movement

Note

● This function comes in handy whenyou need to move to another timezone. For details about how to use it,go to the section below.lMoving to Another Time Zone

StopwatchThe stopwatch measures elapsed time in unitsof one second up to 23 hours, 59 minutes, 59seconds (24 hours).

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Operation Guide 5588

14

Measuring Elapsed Time

30Seconds

HoursMinutes Hour (24-hour time)

1. Enter the Stopwatch Mode.l Navigating Between Modes

2. Use the operations below to measureelapsed time.

A

A

A

A Stop

Resume

Stop

Start

3. Press (B) to reset the elapsed time to allzeros.

Using Flyback TimingWhile a stopwatch elapsed timemeasurement operation is in progress,pressing (B) will instantly return the stopwatchto all zeros and start a new elapsed timemeasurement operation. You can repeat thisoperation as many times as you like.

1. Enter the Stopwatch Mode.l Navigating Between Modes

2. Use the operations below to measureelapsed time.

A

B

B

A

Start 3

Start 2

Start 1

Stop

3. Press (B) to reset the elapsed time to allzeros.

Starting a Elapsed TimeMeasurement Operationfrom the Calendar Mode(Direct Start)

Direct Start lets you start a stopwatch elapsedtime measurement operation from theCalendar Mode, without switching to theStopwatch Mode first.

1. Press (A) twice in succession.● This starts a stopwatch elapsed time

measurement operation.

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Note

● Before using Direct Start, make surethat the stopwatch is reset to all zeros.ー If the result of the last elapsed time

measurement operation youperformed is stopped on thestopwatch display, pressing (A)twice in succession in the Calendarmode will display that result.

ー If the last stopwatch elapsed timemeasurement operation youperformed is still ongoing, pressing(A) twice in succession in theCalendar mode will display thatongoing operation.

● Direct Start is disabled when any oneof the conditions below exists.ーWhile the alarm or timer beeper is

soundingーWhile a time signal receive operation

is in progressーBluetooth connection

TimerThe timer counts down from a start timespecified by you. A beeper sounds when theend of the countdown is reached.● The beeper is muted when battery power is

low.

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Setting the Timer Start Time

1. Enter the Timer Mode.l Navigating Between Modes

2. Pull out the crown to the first click.3. Rotate the crown to change the

countdown start time setting.● The countdown start time can be set in

1-minute units up to 24 hours.

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Crown

Seconds

MinutesHours

24-hour

4. Push the crown back in.

Note

● You can set a countdown start time of24 hours by aligning the small 24-hourhand with 24.

● You can also use G-SHOCKConnected to configure timer settings.

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Using the Timer

1. Enter the Timer Mode.l Navigating Between Modes

2. Press (A) to start the countdown.

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A beeper sounds for 10 seconds when theend of the countdown is reached.● To pause an ongoing countdown, press

(A). To reset a paused countdown to thestart time, press (B).

3. Press any button to stop the tone.

AlarmThe watch will beep when the alarm time isreached.● The beeper is muted in the cases described

below.ーWhen battery power is lowーWhen watch is at Level 2 power savingl Power Saving

Configuring Alarm Settings

1. Enter the Alarm Mode.l Navigating Between Modes

2. Pull out the crown to the first click.This turns on the alarm.

3. Rotate the crown to change the alarm timesetting.

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Crown

MinutesHours

Alarm on

4. Push the crown back in.

● To stop the alarmTo stop the alarm after it starts to sound whenthe alarm time is reached, press any button.

Note

● A beeper sounds for 10 seconds whenthe alarm time is reached.

● You can also use G-SHOCKConnected to configure alarm timesettings.

Turning Off the AlarmIf you leave the alarm turned on, it will soundevery day at the preset alarm time.To stop the alarm from sounding, perform thesteps below to turn it off.To have the alarm sound again, turn it on.

1. Enter the Alarm Mode.l Navigating Between Modes

2. Press (B) to move the second hand toOFF.● Each press of (B) toggles between ON

and OFF.

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Alarm on

Alarm off

Adjusting Hand andDay Indicator

AlignmentStrong magnetism or impact can cause thehands and/or the day indicator to go out ofalignment. If this happens, adjust hand andday indicator alignment.● The watch performs alignment of the hour

hand, minute hand, and second handautomatically.

Adjusting Hand and DayIndicator Alignment

1. Pull out the crown to the second click.2. Hold down (B) for at least five seconds

until the second hand points to 12 o’clock .Release the button when the second handreaches 12 o’clock.This starts auto alignment of the hourhand, minute hand, and second hand.● After auto alignment is complete, the

hands should be in the positions shownbelow.

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Second hand

Minute hand Hour hand

Crown

Operation Guide 5588

16

3. Press (C).Confirm that the small hour and minutehands, and the small 24-hour hand are allstopped at 12 o’clock.

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Small minute handSmall hour hand

Small 24-hour hand

4. If the small hour and minute hands, andthe small 24-hour hand are not at 12o’clock, rotate the crown to align them with12 o’clock.

5. Press (C).Confirm that the mode hand is stopped at12 o’clock, and check if the day isindicated properly.

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Day (Operation start day)

Mode hand

6. If the mode hand and or the day indicatoris out of alignment, rotate the crown tomove the mode hand to 12 o’clock and theday to the center of the indicator window.● The movement range of the mode hand

and day indicator is limited when yourotate the crown. The maximum left-right movement of the mode hand is 180degrees in either direction. The dayindicator moves only slightly.

● After the mode hand and day indicatorare in the positions you want, advanceto step 9 of this procedure. If you areunable to make the adjustments youwant, go to step 7.

7. Press (C).Confirm that the day indicator shows 1.

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Day

● Changing the date setting will cause themode hand to rotate repeatedly. Insome cases, the mode hand maycontinue to rotate for about 5 minutes.l Hand and Day Indicator Movement

8. If 1 is not shown for the day, rotate thecrown until 1 is shown for the day.● The mode hand moves in conjunction

with crown rotation. Move the modehand to 12 o’clock.

9. Push the crown back in.

Note

● Leaving the crown pulled out for morethan approximately 30 minutes withoutperforming any operation willautomatically cause the adjustmentoperation to become disabled. If thishappens, push the crown back in to itsnormal position and then pull it outagain to restart the procedure from thebeginning. Pushing the crown in to itsnormal position part way through thealignment procedure will cause thehands to return to their normal position.Any alignment you performed up tothat point will be applied.

Moving to Another TimeZone

Use the procedure below to easily change dayand time settings of the watch to a destinationlocation.● Before Boarding1. Configure the World Time (Dual Time)

setting to the current time at yourdestination.

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Destination time

Current time

l Using G-SHOCK Connected toConfigure Settings

l Using Watch Operations to ConfigureSettings

2. Disable auto time adjustment.

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l Using G-SHOCK Connected toConfigure Settings

l Using Watch Operations to ConfigureSettings

● After Arriving1. Swap the origin time zone time with the

destination time zone time.

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After swappingBefore swapping

Destination time

Destination time

l Using G-SHOCK Connected toConfigure Settings

l Using Watch Operations to ConfigureSettings

2. Enable auto time adjustment.l Using G-SHOCK Connected to

Configure Settingsl Using Watch Operations to Configure

Settings3. Adjust the time setting.l Triggering Immediate Time

Adjustment

Operation Guide 5588

17

Other InformationThis section provides non-operationalinformation you also need to know. Refer tothis information as required.

City (Time Zone) List

Timeoffset

SecondHand

PositionRepresentative

CityReceivableTransmitter

±0* 0 London, Dublin MSF,DCF77+1* 1 Paris, Rome

+2* 2 Athens, Cairo

+3 3 Jeddah,Moscow -

+4 4 Dubai, AbuDhabi -

+5 5 Karachi -+6 6 Dhaka -

+7 7 Bangkok,Jakarta -

+8* 8 Hong Kong,Singapore BPC

+9* 9 Tokyo, Seoul JJY+10 10 Sydney, Guam -

+11 11 Noumea, PortVila -

+12 12 Wellington,Christchurch -

+13 13 Nuku’alofa -+14 14 Kiritimati --12 48 Baker Island --11 49 Pago Pago -

-10 50 Honolulu,Papeete -

-9 51 Anchorage,Nome -

-8* 52 Los Angeles,Vancouver

WWVB

-7* 53 Denver,Edmonton

-6* 54 Chicago,Mexico City

-5* 55 New York,Montreal

-4* 56 Halifax,Caracas

-3 57 Rio de Janeiro,Buenos Aries -

-2 58 Fernando deNoronha -

-1 59 Praia -* Time zones where time calibration signalreception is possible.● The second hand position will be 45 (9

o’clock) if you used your phone to specify acity whose time offset is not included in theabove table.

● The information in the above table is currentas of July 2018.

Supported PhonesFor information about phones that canconnect with the watch, visit the CASIOwebsite.https://world.casio.com/os_mobile/wat/

SpecificationsAccuracy at normal temperature :±15 seconds per month average when timeadjustment by time calibration signalreception or by communication with a phoneis not possible.Timekeeping :

Hour, minute, second, day (2000 to 2099full auto calendar), day of the week

Dual Time :Hour, minute, 24-hour27 time zonesAuto summer time settingHome City/World Time City swapping

Signal Receive Functions :Auto receive, manual receiveAuto transmitter selection (for JJY, MSF/DCF77)Receivable Call SignsJJY (40kHz/60kHz), BPC (68.5kHz),WWVB (60kHz), MSF (60kHz), DCF77(77.5kHz)OFF: Signal receive disabled

Mobile Link :Auto Time Correction

Time setting adjusted automatically atpreset time.

One-touch Time CorrectionManual connection and time adjustment

Phone finderWatch operation sounds the alert soundof the phone.

World TimeCurrent time for a selection ofapproximately 300 citiesHome Time/World Time swapping

Auto summer time settingAutomatic switching between standardtime and summer time.

Timer SettingsAlarm SettingsHand alignment correctionData Communication Specifications

Bluetooth®

Frequency Band: 2400MHz to 2480MHzMaximum Transmission: 0 dBm (1 mW)Communication range: Up to 2 meters(depends on environment)

Stopwatch :Measuring unit: 1 secondMeasuring capacity: 23:59’59” (24 hours)Measurement Functions:

Normal elapsed time measurement,flyback timing, direct start

Timer :Setting unit: 1 minuteCountdown range: 24 hoursMeasuring unit: 1 second10-second beeper when the end of thecountdown is reached

Alarm :Setting units: Hours, minutesBeeper: 10 seconds

Other :LED light (Super Illuminator, afterglow),Power Saving, battery level indicator, autohand position correction

Power Supply :Solar panel and one rechargeable battery

Approximate Battery Life :Approximately 5 monthsConditions

Not exposed to light under the conditionsbelow.Auto Time Adjustment: 4 times/dayLight: 1 operation/dayAlarm: Once (10 seconds)/dayPower Saving: 6 hours/day

Specifications are subject to change withoutnotice.

Operation Guide 5588

18

Mobile Link Precautions● Legal Precautions● This watch complies with or has received

approval under the radio laws of variouscountries and geographical areas. Usingthis watch in an area where it does notcomply with or has not received approvalunder applicable radio laws may be acriminal offense. For details, visit the CASIOWebsite.https://world.casio.com/ce/BLE/

● Use of this watch inside of aircraft isrestricted under the aviation laws of eachcountry. Be sure to follow the instructions ofairline personnel.

● Precautions when using Mobile Link● When using this watch in combination with

a phone, keep the watch and phone closeto each other. A range of two meters isrecommended as a guideline, but the localenvironment (walls, furniture, etc.), thestructure of a building, and other factorsmay require a much closer range.

● This watch can be affected by other devices(electrical devices, audio-visual equipment,office equipment, etc.) In particular, it canbe affected by operation of a microwaveoven. The watch may not be able tocommunicate normally with a phone if amicrowave oven is operating nearby.Conversely, this watch may cause noise inradio reception and the video image of a TV.

● Bluetooth of this watch uses the samefrequency band (2.4 GHz) as wireless LANdevices, and use of such devices in closeproximity of this watch may result in radiointerference, slower communicationspeeds and noise for the watch and thewireless LAN device, or evencommunication failure.

● Stopping Radio Wave Emission by ThisWatch

The watch is emitting radio waves wheneverthe second hand is pointing to [C].Even if the second hand is not pointing at [C],the watch will automatically attempt toconnect with a phone four times a day to adjustits time settings.When in a hospital, on an aircraft, or in anyother area where the use of radio waves is notallowed, use the operations below to stopradio wave generation.● Stopping Radio Wave Generation

Press any button to terminate the Bluetoothconnection.

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DisconnectedConnected

● Disabling Auto Time AdjustmentConfigure G-SHOCK Connected settings todisable time adjustment between the watchand phone.l Using G-SHOCK Connected to Disable

Auto Time Adjustment

Copyrights and RegisteredCopyrights

● The Bluetooth® word mark and logos areregistered trademarks owned by theBluetooth SIG, Inc. and any use of suchmarks by CASIO Computer Co., Ltd. isunder license.

● iPhone and App Store are registeredtrademarks of Apple Inc. in the UnitedStates and other countries.

● iOS is a trademark or registered trademarkof Cisco Systems, Inc.

● GALAXY is a registered trademark ofSamsung Electronics Co., Ltd.

● Android and Google PlayTM are trademarksor registered trademarks of Google LLC.

● Other company names and product namesused herein are trademarks or registeredtrademarks of their respective companies.

Troubleshooting

Signal Reception (TimeCalibration Signal)

Q1 The watch cannot perform a receiveoperation.

Is the watch’s battery charged?Signal reception is not possible whilebattery power is low. Keep the watchexposed to light until it rechargessufficiently.l Solar Charging

Is the watch in the Calendar Mode?The watch cannot receive time calibrationsignals while auto adjustment is disabledor while the watch is in a mode other thanthe Calendar Mode. Return to theCalendar Mode.l Navigating Between Modes

Is your Home City setting correct for yourlocation?

The watch will not indicate the correct timeif the Home City setting is wrong. Changeyour Home City setting so it correctlyreflects your location.l Selecting Your Home City’s Time Zone

After checking the above, the watch stillcannot perform a receive operation.

Time calibration signal reception is notpossible under the conditions describedbelow.● When watch is at Level 2 power saving● When the crown is pulled out● Timer countdown operation in progressIf successful reception is not possible forsome reason, you can adjust the time andday settings manually.

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19

Q2 The signal receive operation alwaysfails.

Is the watch in a location that is appropriatefor signal reception?

Check your surroundings and move thewatch to a location where signal receptionis better.l Appropriate Signal Reception Location

Did you avoid touching the watch while thereceive operation was in progress?

Minimize movement of the watch and donot perform any watch operation while areceive operation is in progress.

Is there an alarm configured to soundduring the same period that the signalreceive operation is performed?

Receive stops if an alarm operation startswhile it is being performed. Disable thealarm.l Turning Off the Alarm

Is the signal transmitter in your areatransmitting a signal?

The transmitter of the time calibration maynot be transmitting a signal.Try again later.

Q3 Signal reception should have beensuccessful, but the watch’s time and/or day is wrong.

Is the time zone where you are using thewatch specified correctly?

Specify the time zone where you are usingthe watch.l Configuring the Summer Time Setting

(Home City)l Configuring the Summer Time Setting

(Dual Time)

Is the hand and/or day indicator alignmentcorrect?

Adjust hand and/or day indicatoralignment.l Adjusting Hand and Day Indicator

Alignment

After checking the above, the time and/orday settings is still wrong.

Adjust time and day settings manually.l Using Watch Operations to Adjust the

Time Setting

I can’t pair the watch with aphone.

Q1 I’ve never been able to establish a(pairing) connection between thewatch and phone.

Are you using a supported phone model?Check if the phone model and itsoperating system are supported by thewatch.For information about supported phonemodels, visit the CASIO Website.https://world.casio.com/os_mobile/wat/

Did you install G-SHOCK Connected onyour phone?

G-SHOCK Connected needs to beinstalled on your phone in order toconnect with the watch.lA Install the required app on your

phone.

Are your phone’s Bluetooth settingsconfigured correctly?

Configure the phone’s Bluetooth settings.For details about setting procedures, seeyour phone documentation.iPhone Users● “Settings”n“Bluetooth”n On● “Settings”n“Privacy”n“Bluetooth

Sharing”n“G-SHOCK Connected”nOn

Android Users● Enable Bluetooth.

Other than the above.Some phones need to have BT Smartdisabled to use G-SHOCK Connected.For details about setting procedures, seeyour phone documentation.On the Home Screen, tap: “Menu” n“Settings” n “Bluetooth” n “Menu” n “BTSmart settings” n “Disable”.

I can’t reconnect the watchand phone.

Q1 The watch will not re-connect with thephone after they are disconnected.

Is G-SHOCK Connected running?The watch cannot re-connect with thephone unless G-SHOCK Connected isrunning on the phone. On the phone’sHome Screen, tap the “G-SHOCKConnected” icon. Then on the watch, holddown (B) for at least 2.5 seconds until thesecond hand points to [C] twice.

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Have you tried turning your phone off andthen back on again?

Turn the phone off and then back on, andthen tap the “G-SHOCK Connected” icon.Next, on the watch, hold down (B) for atleast 2.5 seconds until the second handpoints to [C] twice.

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Is a timer countdown operation inprogress?

Connection with a phone is not possiblewhile there is 30 seconds or lessremaining on a countdown timeroperation. Stop the countdown operationbefore connecting with the phone.

Operation Guide 5588

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Q2 I can’t connect while my phone is inthe Airplane Mode.

Connection with the watch is not possiblewhile the phone is in the Airplane Mode. Afterexiting the phone’s Airplane Mode, go to thephone’s Home Screen and tap the “G-SHOCKConnected” icon. Then on the watch, holddown (B) for at least 2.5 seconds until thesecond hand points to [C] twice.

30

Q3 I changed the phone’s Bluetoothfrom enabled to disabled, and now Ican’t connect anymore.

On the phone, turn Bluetooth off and then backon, and then tap the “G-SHOCK Connected”icon on the Home Screen. Next, on the watch,hold down (B) for at least 2.5 seconds until thesecond hand points to [C] twice.

30

Q4 I can’t connect after turning off thephone.

Turn on the phone and then tap the “G-SHOCK Connected” icon. Next, on the watch,hold down (B) for at least 2.5 seconds until thesecond hand points to [C] twice.

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Phone-Watch Connection

Q1 I can’t establish a connectionbetween the phone and watch.

Have you tried turning your phone off andthen back on again?

Turn the phone off and then back on, andthen tap the “G-SHOCK Connected” icon.Next, on the watch, hold down (B) for atleast 2.5 seconds until the second handpoints to [C] twice.

30

Has the watch been re-paired with thephone?

After deleting pairing information from G-SHOCK Connected, re-pair them.l Unpairing

If you are unable to establish aconnection...

Use the procedure below to delete thepairing information from the watch, andthen re-pair the watch and phone.A Pull out the crown to the second click.B Hold down (B) for about 10 seconds.This deletes the pairing information. Thesecond hand will point to [C].C Push the crown back in.

Changing to a DifferentPhone Model

Q1 Connecting the current watch toanother phone.

Pair the watch with the phone.l If you purchase another phone

Auto Time Adjustment byBluetooth Connection (TimeAdjustment)

Q1 When does the watch adjust is time?The watch will connect with the phone andperform auto time adjustment at around 12:30a.m., 6:30 a.m., 12:30 p.m. and 6:30 p.m. Theconnection is automatically terminated afterauto time adjustment is complete. Also, timesignal auto receive will be performed if therehas been no auto time adjustment based onconnection between the watch and phone formore than one day.

Q2 Auto time adjustment is performed,but the time setting is not correct.

Is auto time adjustment not beingperformed according to its normalschedule?

Note that auto time adjustment is notperformed for 24 hours after swapping ofthe Home Time and World Time, or afterthe time setting is adjusted manually onthe watch. Auto time adjustment willresume 24 hours after either of the aboveoperations is performed.

Is auto time adjustment enabled?Auto time adjustment will not beperformed at the scheduled times unlessit is enabled. Enable auto timeadjustment.l Using the Watch in a Medical Facility or

Aircraft

Q3 Time is not displayed correctly.If your phone is unable to receive a signalbecause you are outside its service range orfor some other reason, the watch may not beable to display the correct time. If thishappens, connect the phone to its networkand then adjust the time setting.

Q4 Time signal reception is notperformed while watch is connectedwith a phone.

The watch does not receive a time signal fortime correction while it is connected with aphone. However, time signal auto receive isperformed if there has been no auto timeadjustment based on connection between thewatch and phone for more than one day.

Operation Guide 5588

21

Alarm

Q1 The alarm does not sound.

Is the watch’s battery charged?Keep the watch exposed to light until itrecharges sufficiently.l Solar Charging

The crown is pulled out.The alarm will not sound while the crownis pulled out. Push the crown back in to itsnormal position.

Is the alarm enabled?Enable the alarm.l Configuring Alarm Settings

Hand Movement andIndications

Q1 I don’t know what mode the watch isin.

You can determine the current mode bychecking the mode hand position. Use (C) tonavigate between modes.l Navigating Between Modes

30

Q2 The second hand is jumping at two-second intervals.

Battery power is low. Keep the watch exposedto light until it recharges sufficiently.l Solar Charging

Q3 All hands are stopped and buttons donot work.

The battery is dead. Keep the watch exposedto light until it recharges sufficiently.l Solar Charging

Q4 The hands suddenly start moving athigh speed.

This is due to one of the reasons below, anddoes not indicate malfunction. Simply waituntil normal hand movement resumes.● The watch is recovering from a power

saving state.l Power Saving● A time calibration signal is being received

and the time setting is being adjusted.l Time Adjustment Using a Time Signal● Watch is connected with a phone to adjust

its time setting.l Auto Time Adjustment

Q5 Hands are stopped and buttons donot work.

The watch is in the charge recovery mode.Wait until the recovery process is complete(for about 15 minutes). The watch will recovermore quickly if you place it in a brightly litlocation.

Q6 Why is the current time indicated bythe watch is off by a certain amountof time (nine hours, three hours and15 minutes, etc.)?

The city setting is not correct. Select thecorrect setting.l Selecting Your Home City’s Time Zone

Q7 The current time indicated by thewatch is off by one hour or 30minutes.

The summer time setting is not correct. Selectthe correct setting.l Selecting Your Home City’s Time Zone

Q8 The hand and/or day indicator are notaligned correctly.

Strong magnetism or impact can cause thehands and/or the indicator to go out ofalignment. Adjust hand and/or day indicatoralignment.l Adjusting Hand and Day Indicator

Alignment● Check the information below to find out how

to align the hands and/or day indicatormanually.l Adjusting Hand and Day Indicator

Alignment

Crown Operations

Q1 Nothing happens when I rotate thecrown.

If you do not perform any operation for abouttwo minutes after pulling out the crown(approximately 30 minutes in the case of handand day indicator alignment), crownoperations will automatically becomedisabled. Push the crown back in to its normalposition and then pull it out again to re-enablecrown operations.l Using the Crown

Operation Guide 5588

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