Casio G-Shock FROGMAN GWF-1000-1JF Resistant Shock Resistant Waterproof ISO 200M Water Resistant Radio controlled Multi-Band 6 Atomic Timekeeping 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 World Time World Time 31 time zones (48 cities + Summertime), UTC indication 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: 10 set of data (dive time, dive start time and surface interval) Stop Watch 1/100 second stopwatch, 24 hour meter, Split Countdown Timer Input range : 1 minute to 24 hour (1-second increments) Alarm 5 Alarm’s (4 Daily alarms and 1 Snooze Alarm), Hourly time signal, Sprit Other function's Battery power indicator Power save function (automatically disables LCD if the watch is left in the dark for approximately 60 to 70 minutes, and sensor measurements if the watch is left in the dark for six or seven days) Full auto-calendar 12/24 hour formats Button Operation Tone on/off Full Auto EL Backlight with Afterglow (After-light time : 1.5 second / 3 second) Power Tough Solar Power Movement Time ( without solar power ) Battery operating time : Approx. 8 months Power Saving Mode : Approx. 26 months Accuracy +/- 15 seconds per month ( non radio controlled ) Glass Inorganic glass Case/Bezel material Stainless steel / Plastic Band material Plastic Size of case 58.3 x 52.8 x 18 mm (HWD) Weight 115 g Manual
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