This Oyster Perpetual Cosmograph Daytona in 18 kt Everose gold, with a Sundust, diamond-set dial and contrasting counter rings, features an Oysterflex bracelet as well as a diamond-set bezel and diamond-set lugs. The 18 kt gold versions of the Cosmograph Daytona with a Cerachrom bezel are available with an Oysterflex bracelet. Developed by Rolex and patented, it singularly combines the robustness of a metal bracelet with the comfort of an elastomer bracelet. It is made up of two flexible curved metal blades – one in each bracelet section – overmoulded with high-performance black elastomer. For optimum comfort, the Oysterflex bracelet is equipped with cushions on its inner sides and an Oysterlock safety clasp to prevent accidental opening. Its length may be adjusted via the ingenious Rolex Glidelock extension system. Model case: Oyster, 40 mm, Everose gold and diamonds Oyster architecture: Monobloc middle case, screw-down case back and winding crown Diameter: 40 mm Material: 18 kt Everose gold with lugs set with diamonds Bezel: Set with diamonds Winding crown: Screw-down, Triplock triple waterproofness system Crystal: Scratch-resistant sapphire Water resistance: Waterproof to 100 metres / 330 feet