Features:Resin CaseResin StrapQuartz MovementCaliber: 3489Mineral CrystalBlack DialDigital DisplayShock Resistant1/100-Second StopwatchCountdown TimerHourly Time SignalMulti-Function AlarmElectro-Luminescent BacklightFlash AlertFull Auto-Calendar12/24-Hour DisplayRegular TimekeepingDay And Date DisplayScrewed Case BackBuckle Clasp100m Water ResistanceApproximate Case Diameter: 37.9mmApproximate Case Thickness: 11.3mmApproximate Lug Width: 14mm