Features:Bio-Based Resin CaseBio-Based Resin StrapQuartz MovementMineral CrystalBlack DialAnalog Digital DisplayShock ResistantMagnetic ResistantWorld Time1/1000-Second StopwatchCountdown Timer5 Daily AlarmsHourly Time SignalLED LightFull Auto-Calendar12/24 Hours DisplayLuminous HandsMonth, Day And Date DisplayScrewed Case BackBuckle Clasp200M Water ResistanceApproximate Case size (L × W × H): 55 × 51.2 × 16.9 mmApproximate Case Diameter: 51.20 mmApproximate Case Thickness: 16.90 mm