Model No.: Rolex Cosmograph Daytona Movement: Automatic Swiss ETA Made MovementWatch Case: Polished Stainless Steel CaseWatch Bezel: Polished Stainless Steel arch Bezel with Units Per Hour Tachymeter indicatorWatch Crown: Stainless Steel screw-down cutwork crown with Rolex logo engraved on the tip and two additional crowns on either side of itWatch Shape: RoundWatch Dial: Black, Arabic numerals time markers, Three functional Subdials, Fully Functional ChronographWatch Glass: Sapphire crystalDiameter: 40 mmBack Case: Brushed Stainless Steel push-in gear rim back case with Green Rolex Logo StampWatch Strap: Polished and brushed Stainless Steel link Strap with Rolex Markings/engravings Double Flip Lock Clasp displaying the Rolex logoStrap Style: Stainless SteelStrap Color: SilverWatch Clasp: Oyster Bracelet ClaspFunction: Smooth Sweep Second Hand, Chronograph, TachymeterWater Proof: 100 m