Features:Case / Bezel Material: ResinResin StrapQuartz MovementMineral CrystalAnalog Digital DisplayShock ResistantLED LightSuper IlluminatorWorld Time31 Time Zones (48 Cities + UTC)1/100-Second StopwatchStopwatch With Target Time AlarmCountdown Timer5 Daily Alarms (With 1 Snooze Alarm)Hourly Time SignalFull Auto-Calendar (To Year 2099)12/24-Hour FormatButton Operation Tone On/OffRegular TimekeepingHand Shift FeatureAccuracy: ±15 Seconds Per MonthDay DisplaySolid Case BackBuckle Clasp200M Water ResistanceApproximate Case Diameter: 57.5mmApproximate Case Thickness: 18.4mm