Features:Resin CaseResin Strap8-Digit CalculatorQuartz MovementDigital DisplayConstants For Addition, Subtraction, Multiplication And DivisionDual TimeDaily AlarmHourly Time Signals1/100 Second Stopwatch12/24 Hours DisplayMeasuring CapacityAuto CalendarOverflow Check IndicatedScrewed Case BackWater ResistanceApproximate Case Diameter: 34mmApproximate Case Thickness: 8mm