Titanium Case Titanium Bracelet Radio controlled: Receives standard time radio waves in Japan, United State, Germany and China Eco-Drive Promaster: 4-year power reserve (in power save mode) Sapphire glass with non-reflective coating 26 cities world time (including Adelaide) Coordinated Universal Time (UTC) display Perpetual calendar Daylight saving function (automatic in radio wave receivable zones, manual in other zones) 1/5 sec chronograph up to 60 min Alarm, 12/24 hr time Aviation slide rule operated by crown at 8 o'clock position Regular automatic reception function Reception level display Insufficient charge warning Overcharge prevention Magnetic resistance Push button buckle Screw case back Low charge indicator 200m Water Resistant Case Diameter: 42mm Case Thickness: 12mm