Features:Stainless Steel CaseNylon StrapQuartz MovementCaliber: 8T63Sapphire CrystalBlack DialAnalog DisplayChronograph FunctionTachymeter ScaleLuminous Hands And MarkersDate Display12/24 Hours DisplayPull/Push CrownScrewed Case BackBuckle Clasp100m Water ResistanceApproximate Case Diameter: 43.00 mmApproximate Case Thickness: 11.60 mmApproximate Lug Width: 22.00 mm