Features:Resin CaseResin StrapQuartz MovementCaliber: 3511Resin CrystalDigital DisplayDual TimeLED Light3 Multi Function AlarmsButton Operation Tone On/Off1/100 Second StopwatchCountdown TimerHourly Time SignalRegular TimekeepingFull Auto Calendar12/24 Hours DisplayDay And Date DisplayScrewed Case BackBuckle Clasp100m Water ResistanceApproximate Case Diameter: 44.5mmApproximate Case Thickness: 13.4mmApproximate Lug Width: 19mm