Features:Resin CaseResin StrapQuartz MovementCaliber: 3502Resin CrystalDigital DisplayWorld TimeLED Backlight1/100 Second StopwatchCountdown TimerHourly Time SignalRegular TimekeepingFull Auto Calendar12/24 Hours DisplayDay And Date DisplayScrewed Case BackBuckle Clasp100m Water ResistanceApproximate Case Diameter: 51.3mmApproximate Case Thickness: 15.8mmApproximate Lug Width: 18mm