Features:Stainless Steel CaseNylon StrapAutomatic MovementCaliber: 4R36Hardlex CrystalBlack DialAnalog DisplayPower ReserveLuminous Hands And MarkersDay And Date Display12/24 Hours DisplaySee Through Case BackBuckle Clasp100M Water ResistanceApproximate Case Diameter: 39mmApproximate Case Thickness: 13mmApproximate Lug Width: 20mm