The G-Shock Frogman series is Casio's line of rugged diving watches. This version features a digital display, with solar charging and atomic time keeping.

Full Specs and Features

Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)
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, China BPC 68.5kHz
Tough Solar Power
Shock Resistant
ISO 200M Water Resistant
Full Auto EL Backlight with Afterglow
World Time
31 times zones (48 cities + UTC), 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)
Dive time and surface interval measurement function
Dive time: 1 second increments, up to 23:59'59
Surface interval: 1 minute increments, up to 47:59'59
Memory capacity: One set of data (dive time, dive start time and surface interval)
1/100 second stopwatch
Measuring capacity: 23:59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
4 Daily alarms and 1 Snooze Alarm
Hourly time signal
Battery power indicator
Power saving function
Button Operation Tone on/off
Full 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: 8 months on full charge (without further exposure to light)