The Rolex Certified Pre-Owned Cosmograph Daytona is presented in a 40mm Oystersteel case with a black dial. It features a tachymeter 400 bezel. Worn on an Oyster bracelet, it is driven by the automatic Calibre 4130. Launched in 1963 for endurance racing drivers, the Cosmograph Daytona pairs a chronograph with a tachymetric bezel for reading average speed. It is waterproof to 100 meters.