This is Japan Domestic Market Version Casio Master Blue Mudman MULTIBAND5 GW-9025C-1JF Shockproof Structure Mineral Glass Tough Solar (mass solar charge system) WR 20 Bar Waterproof Stainless Steel Wave Ceptor:automatic reception (5 times/day), manual operation , Receiving Wave:JJY, Frequency:40kHz/60kHz (Fukushima/Kyushu Dual band) Receiving Wave:WWVB, Frequency:60 kHz Receiving Wave:MSF/DCF77, Frequency:60kHz/77.5kHz World Time 29 time zones (48 cities), city code display, daylight saving on/off One-Touch City Code Home Time Setup When Los Angeles, Denver, Chicago, and New York are selected, it receives US wave (WWVB) and the time of the place is corrected. The time difference is set up by the selected city. Stop Watch Function : 1/100, 1000 hour meter Multi Alarm 12/24-hour format Super Illuminator / EL light Full Auto-Calendar (to year 2099) Battery Indicator Approx. battery operating time: 9 months without solar power Power Saving Mode? 25 months Battery Indicator 3 fold push band Size of Case(H×W×D) / total weight :46×52×16mm?56g? Accuracy : Quartz Movement / ±15 seconds per month Comes with original CASIO G-SHOCK box and Japanese manual