Features:Stainless Steel CaseRubber StrapQuartz MovementCaliber: Ronda 5030.DSapphire CrystalBlack DialAnalog DisplayTachymeter ScaleChronograph FunctionLuminous Hands And MarkersDate DisplayScrewed Case BackBuckle Clasp100M Water ResistanceApproximate Case Diameter: 42.00 mmApproximate Case Thickness: 12.00 mmApproximate Lug Width: 21.00 mm