The Cosmograph Daytona was introduced in 1963. It was projected to meet the rigorous demands of professional race drivers. The success of the Rolex Daytona is largely due to Sir Malcolm Campbell, a legendary personality in the motorsport world, who was also known as the Speed King, and was also the first Rolex Ambassador. In his Blue Bird race cars, Sir Malcolm Campbell set several land-speed records both in Europe and at a racetrack in a little-known Florida city called Daytona Beach wearing a Rolex Daytona on his wrist. The Cosmograph Daytona 116509 is presented with a 40mm 18k white gold case. It’s meteorite dial with black subdials and index hour markers, featuring a central sweep seconds hand allowing an accurate reading of 1/8 seconds, while the two counters on the dial display the elapsed time in hours and minutes. The combination of its dial features and it fixed tachymetric scale, also in 18k white gold, allows drivers to measure their average speed (up to 400 kilometers per hour) and to accurately map their track times and tactics with extraordinary precision. Additionally the Daytona 116509 Chronograph is water resistant to 100 meters. The Daytona 116509 has an approximate power reserve of 72 hours. The Daytona 116509 18k white gold Oyster bracelet not only shows the elegance delivered by Rolex tradition, but also is the reason for its amazing comfort and durability. It also features a folding Oysterlock safety clasp with Easylink 5 mm comfort extension link. All these characteristic make the Daytona 116509 an iconic watch eternally joined in name and function to the high‑performance world of motorsport.