Features:Resin CaseResin StrapQuartz MovementCaliber: 5637Mineral CrystalBlack DialAnalog Digital DisplayWorld TimeShock ResistantNeobrite1/100 Second StopwatchCountdown Timer5 Daily AlarmsHourly Time SignalLED Lighting Selectable Lighting DurationFull Auto CalendarButton Operation Tone On/OffRegular Timekeeping12/24 Hours DisplayLuminous HandsMonth, Day And Date DisplayScrewed Case BackBuckle Clasp200m Water ResistanceApproximate Case Diameter: 49.5mmApproximate Case Thickness: 16.9mmApproximate Lug Width: 16mm