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Turn heads and grab attention with a rugged timepiece boasting a bold, eye-catching black and yellow color scheme. Tough, yet stylish designs feature basic black, accented with touches of the bright yellow used for emergency rescues and safety signs.
A cool, versatile look that complements both casual and work styles. Choose from four models: the GWB5600 with Bluetooth® connectivity plus radio control; the GAB2100 with Bluetooth® connectivity and solar charging; the large case GA100; or the GA700 with front button design.
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Case size (L× W× H)
48.9 × 42.8 × 13.4 mm -
Weight
53 g -
Case and bezel material
Resin -
Band
Resin Band -
Construction
Shock Resistant -
Water resistance
200-meter water resistance -
Time adjustment
Radio-controlled Watch; Multi band 6 -
Power supply and battery life
Tough Solar (Solar powered)
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Smartphone Link feature
Mobile link (Wireless linking using Bluetooth®) -
Apps
CASIO WATCHES -
App connectivity feature
Auto time adjustmentEasy watch settingApproximately 300 world time cities + user-added pointTime & placeReminderPhone finder
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World time
5 World time 39 time zones (39 cities +coordinated universal time), auto summer time (DST) switching, home city/world time city swapping -
Stopwatch
1/100-second stopwatch Measuring capacity: 00’00”00~59’59”99 (for the first 60 minutes) 1:00’00~23:59’59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times -
Timer
Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) -
Alarm/hourly time signal
5 daily alarms (with 1 snooze alarm)Hourly time signal -
Light
LED backlight (Super illuminator) Full auto LED light, selectable illumination duration (2 seconds or 4 seconds), afterglow -
Light color
LED:White -
Calendar
Full auto-calendar (to year 2099) -
Mute feature
Button operation tone on/off -
Energy saving feature
Power Saving (display goes blank to save power when the watch is left in the dark) -
Battery display/alert
Low battery alert -
Run time
Approx. battery operating time: 10 months on rechargeable battery (operation period with normal use without exposure to light after charge) 22 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) -
Accuracy
Accuracy: ±15 seconds per month (with no signal calibration and mobile link function) -
Other features
12/24-hour formatDate/month display swappingDay display (days of the week selectable in six languages)Regular timekeeping: Hour, minute, second, pm, month, date, day -
Time adjustment details
Time Calibration Signals Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station name: MSF (Anthorn, England) Frequency: 60.0 kHz Station name: WWVB (Fort Collins, United States) Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu City, Henan Province, China) Frequency: 68.5 kHzTime calibration signal reception Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful) *5 times a day for the Chinese calibration signal Manual receive The latest signal reception results