Features:Resin CaseResin StrapQuartz MovementMineral CrystalDigital DisplayWorld TimeShock ResistantLED BacklightStopwatchCountdown Timer4 Daily AlarmsFull Auto CalendarDay And Date Display12/24 Hours DisplayScrewed Case BackBuckle Clasp200M Water ResistanceApproximate Case Diameter: 51mmApproximate Case Thickness: 15mm