Features:Bio-Based Resin CaseBio-Based Resin StrapTough SolarCaliber: 3553Mineral CrystalBlack DialDigital DisplayShock ResistantMud ResistantCarbon Core Guard StructureDigital CompassWorld Time1/10-Second StopwatchCountdown Timer5 Daily Alarms (With 1 Snooze Alarm)Hourly Time SignalLED BacklightFull Auto-CalendarButton Operation Tone On/OffPower SavingBattery Level IndicatorRegular Timekeeping12/24 Hours DisplayMonth, Day And Date DisplayScrewed Case BackBuckle Clasp200m Water ResistanceApproximate Case Diameter: 52.7mmApproximate Case Thickness: 14.8mmApproximate Lug Width: 24mm