CASIO G-Shock MUDMASTER Mens Japan Import GWG-1000-1A3 Imported Shock-resistant; Vibration proof structure , 20 ATM water resistant Temperature measurement function (measurement range: -10 to 60  C); Radio-controlled watch Japan, North America, Europe, China Region correspondence Altitude measurement function / relative altimeter (measurement range: -700 to 10,000 m) Stopwatch (1/100 second, 24 hour total, with split) Tough Solar (Solar Charging System)