Features:Resin CaseWhite Resin StrapQuartz MovementResin CrystalBlue DialDigital DisplayDual Time1/100-Second Stopwatch Countdown Timer3 Multi-Function AlarmsHourly Time SignalLED LightFull Auto-CalendarButton Operation Tone On/Off12/24 Hours DisplayMonth, Day And Date DisplayScrewed Case BackBuckle Clasp100M Water ResistanceApproximate Case Size (L Ã W Ã H): 45.5 Ã 40.5 Ã 12.4 mmApproximate Case Diameter: 40.50 mmApproximate Case Thickness: 12.40 mm