6900 Series GW6900NASA241
Case size (L× W× H)
53.2 × 50 × 17.7 mm
Weight
63 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 time 31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off
Stopwatch
1/100-second stopwatch Measuring capacity: 23:59'59.99'' 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 minute to 24 hours (1-minute increments and 1-hour increments)
Alarm/hourly time signal
Daily alarms (4 alarms and 1 snooze alarm)
Hourly time signal
Light
Electro-luminescent backlight Full auto EL light, afterglow
Light color
EL:Blue
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
Battery level indicator
Run time
Approx. battery operating time: 9 months on rechargeable battery (operation period with normal use without exposure to light after charge) 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: 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 kHz
Time 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
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