Features:Resin CaseResin StrapQuartz MovementMineral CrystalBlack DialDigital DisplayShock Resistant1/100 Second StopwatchCountdown TimerHourly Time SignalMulti Function AlarmLED BacklightAfterglowFlash AlertFull Auto CalendarRegular Timekeeping12/24 Hours DisplayMonth, Day And Date DisplayScrewed Case BackBuckle Clasp200m Water ResistanceApproximate Case Diameter: 42.8mmApproximate Case Thickness: 13.4mm