Chronograph Icon The Rolex Cosmograph Daytona is a symbol of precision and endurance. Designed for the demands of motorsport, it combines technical performance with a bold, recognisable aesthetic that has made it a legend among chronographs. Refined Contrast This 2012 reference 116509 features a 40mm case in 18ct white gold and is powered by the calibre 4130 automatic movement, offering a power reserve of approximately 72 hours. The Oyster bracelet is secured with the Oysterlock clasp and Easylink extension system.