Features:Resin CaseResin StrapQuartz MovementMineral CrystalRed DialDigital DisplayWorld TimeShock ResistantApprox. Battery Life: 2 Years On CR2016Multi Function AlarmFlash AlertButton Operation Tone On/Off1/100 Second StopwatchCountdown TimerHourly Time SignalElectro Luminescent BacklightFull Auto Calendar12/24 Hours DisplayMonth, Day And Date DisplayScrewed Case BackBuckle Clasp200m Water ResistanceApproximate Case Diameter: 42.8mmApproximate Case Thickness: 13.4mm