Casio CASIO G-SHOCK G-SHOCK Men's Solar Radio Wave GW-7900B-1ER Black [Watch] Reimported
Impact-resistant construction
Tough Solar (solar charging system)
Radio wave reception function: automatic reception (maximum 6 times/day) /manual reception
Moon data tide graph
Approximately 52.4 x 50.0 x 17.7 mm
rubrics Size case: approx. 52.4 x 50.0 x 17.7 mm Weighs approximately 71 g Specifications/Impact Resistant Construction (Shock Resist) Water resistant to 20 ATM Tough Solar (solar charging system) Radio wave reception function: automatic reception (maximum 6 times/day) /manual reception, <Japan> Received radio waves: JJY, frequency: 40 kHz/60 kHz (models compatible with both Fukushima/Kyushu stations) <North America Region> Received radio waves: WWVB, frequency: 60 kHz <Europe Region>Received radio waves: MSF/DCF77, frequency: 60 kHz/77.5 kHz <China> Received radio waves: BPC, frequency: 68.5 kHz *If the home time setting is set to a city where reception is possible, the station corresponding to the city will be received. Also, the time difference is set depending on the selected city. World Time: Time display for 48 cities around the world (29 time zones), with daylight saving time setting function Moon data (display of the age of the month and the shape of the moon) Tide graph 2 stopwatches (1/100 seconds, 1,000 hour meter, with split), only stopwatch 1 has a 5-second countdown auto start function Timer (set unit: 1 minute, maximum set: 24 hours, measured in 1-second increments, auto repeat, time-up notice) 5 multi-alarms (only 1 with snooze function) Time alarm Fully automatic calendar 12/24 hour display switch Low temperature resistant specification (-20℃) Operation sound ON/OFF switching function EL backlight (with auto light, afterglow function, afterglow time switching (3 sec/5 seconds)) Alarm flash function (alarm/time alarm, timer forewar/time up, stopwatch auto start, alarm linked light emission)