GWF-D1000NV-2DR

LED backlight (Super illuminator)
Full auto LED light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
Solar powered
GPS signal reception: Auto receive (time information, once/day); Manual receive (position information, time information)
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
Digital compass
Measuring range: 0 to 359°
Measuring unit: 1°
20 seconds continuous measurement
Graphic direction pointer
Auto level correction function
Direction compensation (figure 8, 3-point)
Magnetic declination correction
Thermometer
Display range: –10 to 60°C (14 to 140°F)
Display unit: 0.1°C (0.2°F)
Changeover between Celsius (°C) and Fahrenheit (°F)
Time stamp recording of up to 20 records (hour, minute, second, year, month, date, day (diving mode: depth and water temperature / compass mode: bearing angle / thermometer mode: temperature))
Diving mode
Measuring range: 0.0 to 80.0m (0.0 to 262.5ft)
Measuring unit: 0.1m (0.5ft)
Dive time: 1 second increments, up to 5:59’59
Surface time measurement
Ascent rate alarm
Log data
Automatic data recording of up to 20 records (dive start year, month and day, start time, dive time, maximum depth and lowest water temperature)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off
Moon data (moon age of the specific date, moon phase)
Tide graph (tide level for specific date and time)
1/100-second stopwatch
Measuring capacity: 99:59'59.99''
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)
Hourly time signal
Battery level indicator
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
Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month (with no signal calibration)
Approx. battery operating time
7 months on rechargeable battery (operation period with normal use without exposure to light after charge)
23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Size of case : 59.2×53.3×18mm
Total weight : 141g