This is Japan Domestic Market Version Casio G-Shcok The G Mudman Multiband 6 GW-9010-1JF Shockproof Structure Resin band Tough Solar (mass solar charge system) WR 20 Bar Waterproof World Time 29 time zones (48 cities), city code display, daylight saving on/off One-Touch City Code Wave Ceptor: automatic reception (6 times/day), manual operation , <JAPAN>Receiving Wave: JJY, Frequency:40kHz/60kHz (Fukushima/Kyushu Dual band) <USA>Receiving Wave: WWVB, Frequency: 60kHz <EUROPE> Receiving Wave: MSF/DCF77, Frequency:60kHz/77.5kHz <CHINA> Receiving Wave: BPC, Frequency:68.5kHz Rally mode Stop Watch Function : 1/100, 24 hour meter Timer (Set unit: 1 minute, Max set: 24 hours, measure by 1 second unit) Report sound flash function Alarm 12/24-hour format EL backlight On Off Sound Full Auto-Calendar (to year 2099) Battery Indicator Approx. battery operating time: 7 months without solar power Power Saving Mode: 24 months Size of Case(H×W×D) / total weight : 52×46.3×16.3 mm /56g Accuracy : Quartz Movement / ±15 seconds per month Comes with original CASIO box and Japanese manual