Brand: Rolex Collection: Cosmograph Daytona Model: 116503-0008 Case Material: Steel and 18K Yellow Gold Case Diameter: 40.0 mm Dial: Black, set with Diamonds Bracelet: Oyster, Steel and 18K Yellow Gold Clasp: Double Locking Deployment Movement: Self-Winding Mechanical, Calibre 4130 Functions: Hours, Minutes, Seconds, Chronograph Bezel: 18K Yellow Gold with Tachymetric Scale Crystal: Scratch-Resistant Sapphire Case Back: Solid Water Resistant: 100 metres / 330 feet