GWX5600C-4DR

Electro-luminescent backlight
Full auto EL light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
Solar powered
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
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
World time
31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off
Moon data (moon age of the specific data, moon phase graph)
Tide graph (tide level for specific date and time)
Preset tide sites: 100 (global)
1/100-second stopwatch
Measuring capacity: 59'59.99''
Measuring modes: Elapsed time, split time,1st-2nd place times
2 countdown timers
Can be used during interval training that alternates between two different paces.
Measuring unit: 1 second
Input range: 00'05'' to 99'55''
(1-minute increments and 5-second increments)
Other: Number of repeats settable from 1 to 10
5 daily alarms (with 1 snooze alarm)
Hourly time signal
Battery power 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:
10 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)