Features:Resin CaseStainless Steel BraceletResin CrystalDigital DisplayDaily Alarm1/10-Second StopwatchMeasuring CapacityCountdown TimerAuto Calendar (28 Days For February)Hourly Time SignalRegular TimekeepingAccuracy: ±30 Seconds Per MonthDeployment Clasp30M Water ResistanceApproximate Size Of Case: 30.3 x 24.6 x 7.3mm