Features:Stainless Steel CaseSilicone StrapAutomatic MovementCaliber: 4R3523 JewelsHardlex CrystalBlack DialAnalog DisplayManual WindingPower Reserve Up to 41 HoursLuminous Hands And MarkersDate DisplayUni Directional Rotating BezelScrew Down CrownScrewed Case BackBuckle Clasp200M Water ResistanceApproximate Case Diameter: 41.70 mmApproximate Case Thickness: 12.30 mmApproximate Lug Width: 20.00 mm