The Rolex Chronograph collection has built a solid reputation over the last century as a professional watch. In 1953, Rolex introduced the Cosmograph to this line as a tribute to race car drivers. This was the first version to move the Tachometer onto the Bezel to both simplify and create space on the dial. The resulting Bezel added a distinctive sports look to the watch and significantly improved readability for the wearer. In later models, the bezel also features the distinctive play of black and white as the dial. This practical legibility is also one of its most visually arresting and distinctive design features.