Casio G-SHOCK 30th Anniversary Limited Model - Thirty Stars Sky Cockpit GW-A1030A-1AJR (Japan Import) IMPORTED FROM JAPAN Tough Solar power system (solar-charging system) Measuring range: -10 to 60C (14 to 140F); measuring unit: 1C (2F) 77.5 kHz (DCF77: Germany); 60 kHz (MSF: UK); 60 kHz (WWVB: USA); 40 kHz (JJY: Fukushima, Japan) / 60 kHz (JJY: Kyushu, Japan); 68.5 kHz (BPC: China) Automatic reception up to six times a day (except for use in China: up to five times a day); manual reception