Features:Bio-Based Resin CaseBio-Based Resin StrapQuartz MovementMineral CrystalBlue DialDigital DisplayShock ResistantBluetoothStep Count GraphStep IndicatorMobile LinkLife Log DataStopwatch Data TransferTime & PlacePhone FinderDual Time1/100-Second StopwatchCountdown Timer5 Daily AlarmsHourly Time SignalLED BacklightAfterglowFull Auto-CalendarButton Operation Tone On/OffPower Saving On/OffLow Battery Alert12/24 Hours DisplayMonth, Day And Date DisplayScrewed Case BackBuckle Clasp200M Water ResistanceApproximate Case Size (L × W × H): 46.4 × 43.8 × 12 mmApproximate Case Diameter: 43.80 mmApproximate Case Thickness: 12.00 mm