Features:Resin CaseResin StrapMineral CrystalDigital DisplayShock ResistantElectro Luminescent BacklightFlash Alert1/100 Second StopwatchCountdown TimerAlarmHourly Time SignalFull Auto Calendar12/24 Hours DisplayDay And Date DisplayScrewed Case BackBuckle Clasp200m Water ResistanceApproximate Case Diameter: 50mmApproximate Case Thickness: 13mmApproximate Lug Width: 25mm