Features:Stainless Steel CaseSilicone StrapQuartz MovementMineral CrystalBlack DialAnalog DisplayTachymeter ScaleChronograph Function12/24 Hours DisplayLuminous Hands And MarkersDate DisplayScrewed Case BackDeployment Clasp100m Water ResistanceApproximate Case Diameter: 43mmApproximate Case Thickness: 11.5mm