Features:Stainless Steel CaseRubber StrapQuartz MovementCaliber: NN50Sapphire CrystalBlack DialAnalog DisplayChronograph FunctionLuminious Hands And MarkersDate DisplayScrew Down CrownSolid Case BackDeployant Clasp300m Water ResistanceApproximate Case Diameter: 45mmApproximate Case Thickness: 17.35mm