Receives time calibration radio signals which keep the displayed
time accurate
Auto receive function up to 6 times per day (up to 5 times per day
for China)
Manual receive function Signal: US WWVB, UK MSF, Germany DCF77,
Japan JJY40/JJY60, China BPC
Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz,
BPC 68.5kHz
Tough Solar Power
Shock Resistant
200M Water Resistant
Full Auto EL Back light with Afterglow
Moon Data (moon age of the specific data, moon phase graph)
Tide Graph (tide level for specific date and time)
World Time 31 times zones (48 cities + UTC), city code display,
daylight saving on/off
4 Daily Alarms and 1 Snooze Alarm Hourly Time Signal Countdown Timer
Measuring unit: 1 second Input range: 1 minute to 24 hours (1-minute
increments and 1-hour increments) 1/100 second stopwatch Measuring
capacity: 23:59’59.99” Measuring modes: Elapsed time, split time,
1st-2nd place times.
Battery power indicator
Power saving function
Button operation tone on/off
Auto Calendar (pre-programmed until the year 2099)
12/24 Hour Formats
Accuracy: +/- 15 seconds per month
Storage battery: Solar rechargeable battery Approx. battery life:
9 months on full charge (without further exposure to light)
Module 3200 Size of case/total weight GW7900B 52.4 x 50.0 x 17.7mm
/ 71g
