Features:Stainless steel CaseResin StrapQuartz MovementCaliber: 3421Mineral CrystalBlack DialDigital DisplayShock ResistantFlash AlertElectro Luminescent Backlight1/100 Second StopwatchCountdown TimerHourly Time SignalMulti Function AlarmRegular TimekeepingFull Auto Calendar12/24 Hours DisplayMonth, Day And Date DisplayScrewed Case BackBuckle Clasp200m Water ResistanceApproximate Case Diameter: 42.8mmApproximate Case Thickness: 13.5mmApproximate Lug Width : 16mm