Solar powered
• LED backlight (Super illuminator)
Full auto LED light, selectable illumination duration (2 seconds or 4 seconds),
afterglow
• 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
The latest signal reception results
• 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
• Mobile link (Wireless linking using Bluetooth®)
• World time
5 World time registerable
39 time zones (39 cities +coordinated universal time), daylight saving on/off,
Home city/World time city swapping, auto summer time (DST) switching
• 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
• 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)
• 5 daily alarms (with 1 snooze alarm)
• Low battery alert
• Power Saving (display goes blank to save power when the watch is left in the dark)
• Full auto-calendar (to year 2099)
• 12/24-hour format
• Button operation tone on/off
• Date display (day / month display swapping)
• Day display (days of the week selectable in six languages)
• Regular timekeeping: Hour, minute, second, pm, month, date, day
• Accuracy: ±15 seconds per month (with no signal calibration)
• 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)
• Size of case / total weight
GMW-B5000D ........49.3 43.2 13.0 mm / 167 g
GMW-B5000 ..........49.3 43.2 13.0 mm / 96 g
GMW-B5000TFG ...49.3 43.2 13.0 mm / 167 g