Casio G-Shock Digital Watch GWM5600-1CR 

Multi-Band.
Atomic Timekeeping (US, UK, Germany, Japan).
Receives time calibration radio signals which keep the displayed time accurate.
Auto receive function (6 times per day) Manual receive function Signal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60 Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz.
Tough Solar Power.
Shock Resistant.
200M Water Resistant.
Auto EL Backlight with Afterglow.
World Time - 29 times zones (48 cities), city code display, daylight saving on/off.
5 Daily Alarms (1 with snooze).
Countdown Timer.
Measuring unit: 1/10 second Countdown range: 1 minute to 60 minutes.
1/100 second stopwatch.
Measuring capacity: 999:59'59.99".
Measuring modes: Elapsed time, split time, 1st-2nd place times.
Hourly Time Signal Button Tone.
Operation On/Off.
Auto Calendar (pre-programmed until the year 2099).
12/24 Hour Formats.
Accuracy: 15 seconds per month (with no signal calibration).
Storage Battery Battery Power Indicator.
Power Saving Function Approx.
battery life: 8 months on full charge (without further exposure to light).
Casio G-Shock Watch GWM5600-1CR