GB-6900B / GB-X6900B Module No.
Congratulations upon your selection of this CASIO watch. To ensure that this watch provides you with the years of service for which it is designed, carefully read and follow the instructions in this manual, especially the information under “Operating Precautions” and “User Maintenance”. Be sure to keep all user documentation handy for future reference. Bluetooth® is a registered trademark or trademark of Bluetooth SIG, Inc. of the United States.
Mobile Link Function This product includes functions that allow it to communicate with Bluetooth ® 4.0 (referred to as “Bluetooth” in this manual) capable mobile phones and other devices, to sound an alert tone, perform vibration alert, and display alerts when a phone call and/or mail is received on your phone, etc. (Mobile Link Function) •• This product complies with or has received approval under radio laws in various countries and geographic areas.
Features Your watch provides you with the features and functions described below. ◆◆ Communication with your mobile phone...........Visit the CASIO website Connect with a Bluetooth enabled mobile phone and communicate with it. For more information, visit the “User’s Guide for Mobile Link Functions” page at the CASIO website. ◆◆ World Time................................................................................. Page E-24 Instantly view the current time in 100 cities around the globe. ◆◆ Alarms....
◆◆ Stopwatch................................................................................... Page E-37 The stopwatch measures elapsed time up to 1,000 hours in 1/100-second increments. ◆◆ Timer........................................................................................... Page E-40 The timer counts down from a preset start time, and the watch sounds a tone or vibrates when the countdown reaches zero.
Contents Features................................................................................................................. E-3 About this User’s Guide......................................................................................... E-8 Display Types...................................................................................................E-8 Tap Operations.................................................................................................
To configure the Summer Time (DST) setting...................................................E-26 Alarms and Hourly Time Signal........................................................................... E-28 To enter the Alarm Mode................................................................................E-28 To change an alarm setting.............................................................................E-30 To stop a tone/vibration alert operation................................................
Illumination........................................................................................................... E-44 To illuminate the display..................................................................................E-44 About the Auto Light Switch............................................................................E-45 To turn the auto light switch on and off............................................................E-46 To specify the illumination duration..........................
About this User’s Guide Display Types Depending on the model of your watch, display text appears either as dark figures on a light background or light figures on a dark background. All sample displays in this manual are shown using dark figures on a light background. •• Note that the display style of a watch is fixed. You cannot switch between styles.
Tap Operations The word “tap” in this manual refers to striking the center of watch display with your fingertip. Tap indicator Example: Tap twice to stop an ongoing tone or vibration alert for a watch alarm. How to tap: Lightly strike the watch display twice with the tip of your finger. (double-tap) Important! •• The tap function is enabled only while the Tap indicator is flashing on the watch display.
Button Names and Display Indications Operations on this watch are performed using buttons A through D, and the L button. The illustration below shows the locations and the meanings of the different buttons and display indicators. See “Using Modes” (page E-14).
Note •• The names shown above are used in the button operation explanations throughout this User’s Guide. •• Note that the illustrations in this User’s Guide are intended for reference only. The actual watch may appear somewhat different than depicted in the illustrations.
Display Indicators 3 6 7 8 9 : 4 5 A B 1 2 Number Name Meaning 1 Bluetooth icon Mobile Link functions enabled. 2 PM indicator Indicates p.m. times during 12-hour timekeeping. 3 Snooze indicator Snooze enabled.
Number Name 4 Alarm indicator 5 Hourly time signal indicator 6 DST indicator 7 Vibration indicator Auto light enabled indicator 8 9 Power Saving indicator : A Tap indicator (flashing) Mute indicator B Alert indicator Meaning Alarm is turned on. Hourly time signal is turned on. Summer time enabled (time advanced by one hour). Vibration alert enabled for alarms/timer. Auto light enabled. Mobile Link functions availability limited to save power. Double-tap operation is enabled.
Using Modes Each press of C cycles between modes as shown in the illustration below.
*F or information about the Control Mode and Setup Mode, visit the CASIO website at: http://world.g-shock.com/ble/guide/.
Mode Overview Mode Functions More Info Timekeeping Mode •• Current time display •• Time, date, summer time settings; 12/24-hour display switching •• Manual time adjustment •• Alarm/timer alert method settings E-14 E-18 Control Mode •• Remote operation by data communication •• Information acquisition by data communication World Time Mode •• Current time in 100 cities (35 time zones) around the globe Alarm Mode •• Alarm time and on/off settings •• Hourly time signal on/off E-28 Stopwatch Mode ••
Mode Setup Mode Functions •• For configuring duration, method, and other settings for alerts from the phone More Info CASIO website Note •• For information about Mobile Link functions, visit the “User’s Guide for Mobile Link Functions” page of the CASIO website.
Adjusting the Time Setting When Mobile Link is enabled, the watch’s time and date settings are automatically adjusted to match those of the phone. When Mobile Link is disabled, you should adjust the time and date settings manually.
Configuring Current Time and Date Settings Manually ◆◆To configure time and date settings 1 ● In the Timekeeping Mode, hold down A for about two seconds until the time ● zone setting screen appears. [ SET Hold] will appear on the watch display, followed by the time zone setting screen.
2 ● Use C to select the item whose setting you want to change. ● Each press of C cycles through available settings in the sequence shown below.
Note •• The numbers in the above diagram indicate how many times you need to press C to display each setting. •• Power Saving is a function that saves power by limiting the availability of Mobile Link functions. For more information, visit the “User’s Guide for Mobile Link Functions” page at the CASIO website.
3 ● Use B and D to change the currently selected setting as described below. ● Screen Setting Use B and D. Summer time on/off Press D. 12-hour (12H)/24-hour (24H) timekeeping switching Seconds 00-reset •• From 30 to 59 seconds, resetting adds 1 to the minute setting. E-22 Operation Time zone of the city where you will use the watch Press D. Press D. Hour and minutes settings Use B and D. Year, month, day settings Use B and D.
Note •• Refer to the “City Name List” (back of this manual) to determine the time zone of the city where you will be using the watch. -- Summer time, or Daylight Saving Time (DST) as it is known in some countries, calls for setting clocks ahead one hour from standard time during the summer season. Note that the period during which and the areas where summer time is applied depend on each country. Some countries or geographic areas may not use summer time.
World Time World Time lets you display the current time in any one of 100 cities (35 time zones) around the world. To view the times in other time zones 1 ● In the Timekeeping Mode, press C twice to enter the World Time Mode. ● Current date in World Time city City name Current time in World Time city E-24 See “Using Modes” (page E-14). 1 [ WT100] will appear on the display for about one second, and then the name of the currently selected World Time City will appear.
Note •• If you do not perform any operation for about two or three minutes while in the World Time Mode, the watch will automatically return to the Timekeeping Mode. 2 ● Use B and D to scroll through the World Time Mode city names. ● See “City Name List” (back of this manual). •• Scrolling to a city name displays the current time in that city. •• Holding down either button scrolls at high speed. •• To display the UTC city name (UTC offset 0), press B and D at the same time.
To configure the Summer Time (DST) setting ●● In the World Time Mode, hold down A for about two seconds. DST indicator •• [DST Hold] will appear on the display. After that, [DST Hold] will disappear and the summer time setting will toggle to either on or off. •• DST on the display indicates that summer time is turned on. Important! •• Even when Mobile Link is enabled, you need to turn the summer time (DST) on or off manually for World Time.
Note •• Summer time, or Daylight Saving Time (DST) as it is known in some countries, calls for setting clocks ahead one hour from standard time during the summer season. Note that the period during which and the areas where summer time is applied depend on each country. Some countries or geographic areas may not use summer time. •• The DST indicator will be on the display and timekeeping will be advanced by one hour when summer time is turned on.
Alarms and Hourly Time Signal You can set up to five different alarms. When any one of the alarm times is reached the watch will sound an alarm tone or vibrate for about 10 seconds. In the case of snooze, the alarm will sound up to seven times at five-minute intervals. The hourly time signal causes the watch to sound a tone or vibrate every hour on the hour. See “To change the alarm/timer alert method” (page E-52).
Alarm setting screen Alarm number Hourly time signal setting screen Current time Current time Note •• If you do not perform any operation for about two or three minutes while in the Alarm Mode, the watch will automatically return to the Timekeeping Mode.
To change an alarm setting 1 ● In the Alarm Mode, use D to select the alarm whose setting you want to ● change.
2 ● Use B to toggle the displayed setting between on and off. ● Alarm 1 through Alarm 4 : Alarm does not sound. : Alarm sounds only once at the preset time and does not sound again after that. : Alarm sounds at the preset time each day. Hourly time signal : Hourly time signal does not sound. : Hourly time signal sounds every hour on the hour.
Snooze : Alarm is off. : Alarm sounds at the preset time, and up to seven times at five-minute intervals thereafter. This operation is performed only once. : Alarm sounds at the preset time, and up to seven times at five-minute intervals thereafter. This operation is performed at the preset time each day.
he Alarm indicator is displayed while an alarm is turned on, while the Hourly T time signal indicator is displayed while the hourly time signal is turned on. While snooze is turned on, the Alarm Indicator and Snooze Indicator are both displayed.
3 ● To change an alarm time setting, hold down A for about two seconds until ● the hour digits of the current alarm time start to flash. [ SET Hold] will appear on the display. After that, [SET Hold] will disappear and the hour digits will flash. 4 ● Each press of C causes the flashing to move between the hour and the ● minutes digits. The flashing digits are the ones that are selected. 5 ● Use B and D to change the flashing setting, and set the hour and minutes ● you want.
6 ● After all the settings are the way you want, press A to exit the setting ● screen. 7 ● To return to the Timekeeping Mode, press C four times. ● To stop a tone/vibration alert operation Double-tapping the center of the watch display or pressing any one of the ●●buttons will stop an ongoing tone/vibration alert operation. Note •• In the case of snooze, the alarm will sound up to seven times at five-minute intervals.
-- Displaying the snooze setting screen -- Displaying the Timekeeping Mode setting screen -- Changing the summer time setting of the Home Time city in the World Time Mode To test the alarm In the Alarm Mode, hold down D to perform the tone/vibration alert ●●operations.
Stopwatch The stopwatch measures elapsed time in units of 1/100 seconds up to 999 hours, 59 minutes, 59.99 seconds. Elapsed time returns to zero automatically and timing continues from there when the maximum limit is reached. To enter the Stopwatch Mode Current time Hours In the Timekeeping Mode, press C four ●●times to enter the Stopwatch Mode. See “Using Modes” (page E-14). [ STW] will appear on the display for about one second, and then the stopwatch screen will appear.
To measure time with the stopwatch ●● The following shows button operations for stopwatch operations. •• Elapsed time/cumulative time D D D D B Start Stop (Restart) (Stop) Reset •• Split time (paused elapsed time reading) D B B D B Start Split Split time display cancel Stop Reset Pressing B while timing is being performed displays the split time (with [SPLIT] flashing), but elapsed timing continues internally.
Note •• Once started, elapsed time measurement continues until you press D to stop it, even if you change to a different mode and even if the stopwatch reaches the elapsed time measurement limit. •• If you change to another mode while a split time is frozen on the display, split time display will be canceled.
Timer The timer start time can be set in one-minute increments up to 100 hours. The watch will sound a tone or vibrate for about 10 seconds when the end of the timer countdown is reached. See “To change the alarm/timer alert method” (page E-52). To enter the Timer Mode Current time Hours In the Timekeeping Mode, press C five ●●times to enter the Timer Mode. See “Using Modes” (page E-14).
To set the timer start time 1 ● In the Timer Mode, hold down A for about two seconds. ● [ SET Hold] will appear on the display. After that, [SET Hold] will disappear and the hours digits will flash. Note •• If a timer countdown operation is in progress, press D to stop it and then press B to reset the timer to its start time before performing the above step. •• If a timer countdown operation is paused, press B to reset the timer to its start time before performing the above step.
3 ● Use B and D to change the hours and minutes settings. ● •• Holding down either button scrolls the setting at high speed. •• To specify a start time of 100 hours, set the timer to 0H00'00". 4 ● After all the settings are the way you want, press A to exit the setting ● screen. To perform a countdown ●● The following shows button operations for a countdown.
•• Even if you exit the Timer Mode while a timer countdown is ongoing, the countdown will continue and the tone/vibration alert operation will be performed when the end of the countdown is reached. To stop a tone/vibration alert operation Double-tapping the center of the watch display or pressing any one of the ●●buttons will stop an ongoing tone/vibration alert operation.
Illumination You can use the procedure below to illuminate the display for easy reading in the dark. The watch also has an auto light function that illuminates the display whenever the watch is angled towards your face for reading. To illuminate the display ●● Press L to illuminate the display. Note •• Illumination will turn off automatically if it is on when an alarm alert, incoming call alert, or any alert operation starts. ◆◆Light Use Precautions Frequent use of the light can shorten battery life.
About the Auto Light Switch While the auto light switch is enabled, illumination turns on whenever you position your wrist as described below in any mode. Moving the watch to a position that is parallel to the ground and then tilting it towards you at more than 40 degrees causes illumination to turn on. Parallel ground More than 40° Note •• Auto light is disabled while an alarm is sounding.
Warning! •• When you are wearing the watch, make sure that its auto light switch is turned off before riding on a bicycle or operating a motorcycle or any other motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.
◆◆Auto Light Precautions •• Leaving auto light enabled can run down the watch's battery due to frequent display illumination. •• The auto light may not operate properly when the watch is angled towards your face from an angle greater than about 15 degrees as shown in the illustration below. •• Electro-static charge or magnetism can interfere with proper auto light operation. If this happens, try lowering your arm and then angle it towards your face again.
To specify the illumination duration 1 ● In the Timekeeping Mode, hold down A for about ● two seconds until the time zone setting screen appears. 2 ● Press C 10 times to display the illumination ● duration setting screen. ee “Configuring Current Time and Date Settings S Manually” (page E-19). The screen will show either [LT1] or [LT3].
3 ● Press D to toggle the illumination duration setting between [LT1] ● (1.5 seconds) and [LT3] (3 seconds). 4 ● To return to the Timekeeping Mode, press A.
Other Settings You can use the procedures in this section to turn the tone that sounds when you press a button on or off. You can also select either tone or vibration as the alert method for the alarm and timer. To turn the button operation tone on or off 1 ● In the Timekeeping Mode, hold down A for about ● two seconds until the time zone setting screen appears.
2 ● Press C nine times to display the button operation ● tone setting screen. ee “Configuring Current Time and Date Settings S Manually” (page E-19). The screen will show either [KEY ] or [MUTE]. 3 ● Press D to toggle the setting between [KEY ● and [MUTE] (OFF). ] (ON) hen [MUTE] (OFF) is selected, a Mute indicator is W displayed to indicate that the button operation tone will not sound.
4 ● To return to the Timekeeping Mode, press A. ● Note The above procedure affects the button operation tone only. The alarm, hourly time signal, and time up alarm are not affected. To change the alarm/timer alert method 1 ● In the Timekeeping Mode, hold down A for about ● two seconds until the time zone setting screen 1 appears. 2 ● Press C 11 times to display alert setting screen. ● See “Configuring Current Time and Date Settings Manually” (page E-19). The screen will show either [VIB] or [BEEP].
3 ● Press D to toggle the setting between [VIB] and [BEEP]. ● The Vibration indicator is shown on the display while [VIB] is selected. : Alert by vibration. : Alert by tone. Tone alert Vibration alert Vibration indicator 4 ● To return to the Timekeeping Mode, press A.
Low Battery Indication A low battery indicator appears on the display when battery voltage drops below a certain level. Availability of some functions becomes limited while the low battery indicator is displayed. If the low battery indicator remains on the display, have the battery replaced as soon as possible. Note •• For information about battery life guidelines and supported battery types, see the product specifications. See “Specifications” (page E-56).
The following describes how display of the low battery indicator affects watch operation. •• The watch enters the Timekeeping Mode. Low Battery indicator •• Bluetooth connection turns off and Mobile Link is disabled. •• Display illumination becomes disabled. •• Alert sound and vibration become disabled. •• Double-tap operation becomes disabled.
Specifications Accuracy at normal temperature : ±15 seconds a month Basic Functions : Hour, minutes, seconds; a.m./p.m.
Stopwatch : Measuring unit: 1/100 second Measuring capacity: 999:59'59.99" (1000 hours) Measuring accuracy: ±0.0006% Measurement functions: Elapsed time, cumulative time, split times Countdown Timer : Countdown unit: 1/10 second Countdown range: 100 hours Measuring accuracy: ±0.
Mobile Link Functions E-58 : Time Correction Auto correction/manual correction Alert Tone and/or vibration alert for incoming calls, incoming mail, incoming SNS, calendar alert, etc. Information display (last received information) Phone finder Watch operation sounds the alert sound of the mobile phone. Data Communication Specifications Bluetooth® v4.0 (Bluetooth® low energy technology compatible) Data rate: 1 Mbps Transmission output: 0 dBm (1 mW) Communication range: 2 meters max.
Other : Low battery alert; Auto return to Timekeeping Mode; Power Saving; Vibration alert; Tap function; High-brightness LED light; Selectable illumination duration; Operation tone on/off Battery : One lithium battery (Type: CR2032) Approximate : 2 years Battery Life Usage Conditions •• Mobile Link operation: 12 hours/day ••Incoming call alert: 3 times (tone and vibration for 2 seconds)/day ••Incoming mail, other alerts: 10 times (tone only for 2 seconds)/day •• Illumination: Once (1.
Operating Precautions Water Resistance •• The following applies to watches with WATER RESIST or WATER RESISTANT marked on the back cover.
•• Do not use this watch for scuba diving or other types of diving that requires air tanks. •• Watches that do not have WATER RESIST or WATER RESISTANT marked on the back cover are not protected against the effects of sweat. Avoid using such a watch under conditions where it will be exposed to large amounts of sweat or moisture, or to direct splashing with water. •• Even if a watch is water-resistant, do not operate its buttons or crown while it is submersed in water or wet.
•• A trained technician will know how to check your watch for proper water resistance whenever you have its battery replaced. Battery replacement requires the use of special tools. Always request battery replacement from your original retailer or from an authorized CASIO Service Center. •• Some water-resistant watches come with fashionable leather bands. Avoid swimming, washing, or any other activity that causes direct exposure of a leather band to water.
Band •• Tightening the band too tightly can cause you to sweat and make it difficult for air to pass under the band, which can lead to skin irritation. Do not fasten the band too tightly. There should be enough room between the band and your wrist so you can insert your finger. •• Deterioration, rust, or corrosion of the band can cause it to break, which may result in the watch falling off your wrist and becoming lost. Be sure to take good care of the band and keep it clean.
•• Leaving the watch in an area hotter than +60°C (140°F) for long periods can lead to problems with its LCD. The LCD may become difficult to read at temperatures lower than 0°C (32°F) and greater than +40°C (104°F). Impact •• Your watch is designed to withstand impact incurred during normal daily use and light activity such as playing catch, tennis, etc. Dropping the watch or otherwise subjecting it to strong impact, however, can lead to malfunction.
Electrostatic Charge •• Exposure to very strong electrostatic charge can cause the watch to display the wrong time. Very strong electrostatic charge even can damage electronic components. •• Electrostatic charge can cause the display to go blank momentarily or cause a rainbow effect on the display. Chemicals •• Do not allow the watch to come into contact with thinner, gasoline, solvents, oils, or fats, or with any cleaners, adhesives, paints, medicines, or cosmetics that contain such ingredients.
Resin Components •• Allowing the watch to remain in contact with other items or storing it together with other items for long periods while it is wet can cause the color of the other items to transfer to the resin components of the watch. Be sure to dry off the watch thoroughly before storing it and make sure it is not in contact with other items.
Natural Leather and Imitation Leather Bands •• Allowing the watch to remain in contact with other items or storing it together with other items while it is wet for long periods can cause the color of the other items to transfer to the natural leather or imitation leather band of the watch. Be sure to dry off the watch thoroughly before storing it and make sure it is not in contact with other items.
Metal Components •• Failure to clean dirt from a metal band can lead to formation of rust, even if the band is stainless steel or plated. If the watch is exposed to sweat or water, wipe it thoroughly with a soft, absorbent cloth and then store it in a well-ventilated location to dry. •• To clean the band, use a soft toothbrush or similar tool to scrub it with a weak solution of water and a mild neutral detergent. Take care to avoid getting solution on the watch case.
Display •• Display figures may be difficult to read when viewed from an angle. Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this product or its malfunction.
User Maintenance Caring for Your Watch •• A dirty or rusty case or band can soil the sleeve of your clothing, cause skin irritation, and even interfere with watch performance. Be sure to keep the case and band clean at all times. Rust tends to form easily after the watch is exposed to seawater and then left without cleaning. •• Sometimes a smudge like pattern may appear on the surface of a resin band. This will not have any affect on your skin or clothing. Wipe the band with a cloth to clean it.
•• Remember that you wear your watch next to your skin, just like a piece of clothing. Because of this, you should always keep your watch clean. Use a soft, absorbent cloth to wipe off any dirt, sweat, water, or other foreign matter from the case and band. Dangers of Poor Watch Care Rust •• Though the stainless steel used for the watch is highly rust-resistant, rust can form if the watch is not cleaned after it becomes dirty.
Skin Irritation •• Individuals with sensitive skin or in poor physical condition may experience skin irritation when wearing a watch. Such individuals should keep their leather band or resin band particularly clean, or switch to a metal band. Should you ever experience a rash or other skin irritation, immediately remove the watch and contact a skin care professional. Battery Replacement •• Leave battery replacement up to your original retailer or authorized CASIO Service Center.
Initial Battery •• The battery that comes loaded in your watch when you purchase it is used for function and performance testing at the factory. •• This type of test battery may go dead quicker than the normally rated battery life as noted in the User’s Guide. Note that you will be charged for replacement of this battery, even if replacement is required within the watch’s warranty period.
City Name List City Name （UTC） Reykjavik Lisbon Casablanca London Madrid Paris Algiers Brussels Amsterdam Zurich Time Zone 0 +1 City Name Frankfurt Oslo Rome Copenhagen Berlin Stockholm Budapest Warsaw Cape Town Sofia Athens Time Zone +1 +2 City Name Helsinki Istanbul Kyiv Cairo Jerusalem Moscow* Addis Ababa Jeddah Tehran Dubai Kabul Time Zone +2 +3 +3.5 +4 +4.
City Name Karachi Delhi Kathmandu Novosibirsk* Dhaka Yangon Bangkok Hanoi Jakarta Kuala Lumpur Singapore Hong Kong Perth L-2 Time Zone +5 +5.5 +5.75 +6 +6.5 +7 +8 City Name Beijing Manila Shanghai Taipei Seoul Tokyo Adelaide Vladivostok* Guam Sydney Noumea Wellington Suva Time Zone +8 +9 +9.5 +10 +11 +12 City Name Chatham Islands Nukualofa Kiritimati Pago Pago Honolulu Anchorage Vancouver San Francisco Seattle Los Angeles Tijuana Edmonton Phoenix Time Zone +12.
City Name Chihuahua Denver Mexico City Winnipeg Dallas Houston Guatemala City Chicago Atlanta Havana Toronto Lima Washington DC Time Zone –7 –6 –5 City Name Kingston Philadelphia Bogota New York Boston Caracas Santiago La Paz San Juan Halifax St.John’s Buenos Aires Montevideo Time Zone –5 City Name Rio de Janeiro Fernando de Noronha Praia Time Zone –3 –2 –1 –4.5 –4 –3.
Note •• The above list shows the city names of this watch. •• If you will use the watch in a city that is not included in the City Name List, select a city name that is in the same time zone as your city. •• Time zones in the above list are in accordance with Coordinated Universal Time (UTC). * I n June 2012, the time offsets of the cities listed below were changed by +1 hour. Note that this watch does not reflect this change and it uses the former offsets of these cities.
CASIO COMPUTER CO., LTD. 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan © 2013 CASIO COMPUTER CO., LTD.
