Features:Bio-Based Resin CaseWhite Bio-Based Resin StrapTough Solar MovementMineral CrystalBlack DialDigital DisplayShock Resistant5 World Time 31 Time Zones1/100 Second StopwatchCountdown Timer5 Daily AlarmsHourly Time SignalLED BacklightButton Operation Tone On/OffPower SavingBattery Level IndicatorRegular TimekeepingFull Auto Calendar12/24 Hours DisplayDay And Date DisplayScrewed Case BackBuckle Clasp200M Water ResistanceApproximate Case Diameter: 40.50 mmApproximate Case Thickness: 11.90 mm