Performance with Presence The Cosmograph Daytona is Rolexs definitive racing chronograph. Designed for professional drivers, it combines technical precision with bold aestheticsa watch that performs under pressure and stands out in any setting. Two-Tone Finish This 2017 Rolex Certified Pre-Owned Cosmograph Daytona, reference 116503, features a 40mm Yellow Rolesor casea blend of Oystersteel and 18ct yellow goldwith a white dial. Powered by the calibre 4130 automatic movement, it offers a 72-hour power reserve. The Easylink Oysterlock clasp ensures comfort and security.