Description Back: Ion-plated fancy screwed down back with Royal Oak Offshore Limited Edition engraved on itGender: UominiMovement: Quarzo (Batteria)Quality: Giapponese MiyotaColor: NeroCase: Ion-plated stainless steel caseBracelet: Audemars Piguet Replica Royal Oak Offshore embossed black rubber strap with Audemars Piguet Replica engraved ion-plated fold-in claspBracelet Length: 230 x 27 mmBezel: Gooved ion-plated bezel screwed down by stainless steel screwsBand Type: GommaDiameter: 50 x 45 mm Chronograph: SiWatch Clasp: BuckleGlass: Sapphire CrystalCrown: Fancy ion-plated supported main crown and smaller round crowns on either side with protective bars over themCase Thickness: 17 mm