Learn more about the Men’s Black GW-7900-1 from G-SHOCK. Shop this product and other Digital watches today.
Case size (L× W× H):52.4 × 50 × 17.7 mm
Weight:71 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)
Glass:Mineral Glass
World time:World timeu0026#10
31 time zones (48 cities + Coordinated Universal Time), city code display, daylight saving on/off
Moon data:Moon data (moon age of the specific date, moon phase graph)
Tide graph:Tide graph (tide level for specific date and time)
Stopwatch:1/100-second stopwatchu0026#10
Measuring capacity: 23:59u002759.99u0027u0027u0026#10
Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer:Countdown timeru0026#10
Measuring unit: 1 secondu0026#10
Input range: 1 minutes to 24 hours (1-minute increments and 1-hour increments)
Alarm/hourly time signal:5 daily alarms (with 1 snooze alarm),Hourly time signal
Light:Electro-luminescent backlightu0026#10
Full auto EL light, afterglow
Light color:EL:Blue Green
Calendar:Full auto-calendar (to year 2099)
Mute feature:Button operation tone on/off
Energy saving feature:Power Saving (Turns off the display when the watch is left in the dark)
Battery display/alert:Battery power indicator
Run time:Approx. battery operating time:u0026#10
9 months on rechargeable battery (operation period with normal use without exposure to light after charge)u0026#10
26 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)
Other features:12/24-hour format,Regular timekeeping:u0026#10
Hour, minute, second, pm, month, date, day
Time adjustment details:Time Calibration Signalsu0026#10
Station name: DCF77 (Mainflingen, Germany)u0026#10
Frequency: 77.5 kHzu0026#10
Station name: MSF (Anthorn, England)u0026#10
Frequency: 60.0 kHzu0026#10
Station name: WWVB (Fort Collins, United States)u0026#10
Frequency: 60.0 kHzu0026#10
Station name: JJY (Fukushima, Fukuoka/Saga, Japan)u0026#10
Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)u0026#10
Station name: BPC (Shangqiu City, Henan Province, China)u0026#10
Frequency: 68.5 kHz,Time calibration signal receptionu0026#10
Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)u0026#10
*5 times a day for the Chinese calibration signalu0026#10
Manual receiveu0026#10
The latest signal reception results
