Features:Synthetic CaseSilicone StrapQuartz MovementPlastic CrystalBlack DialAnalog Digital DisplayAlarm12/24 Hours DisplayLuminous HandsMonth, Day And Date DisplayScrew Down CrownScrewed Case BackBuckle Clasp50M Water ResistanceApproximate Case Diameter: 50.00 mmApproximate Case Thickness: 17.30 mm