Racing Heritage The Cosmograph Daytona was introduced in 1963 to meet the demands of professional racing drivers. With its high-performance chronograph and tachymetric scale, it remains a benchmark in precision and endurance. Accuracy and Elegance This reference 116509, from 2006, features a 40mm case in 18ct white gold with a black dial and fixed bezel. Powered by the calibre 4130 automatic movement, it delivers an impressive 72-hour power reserve and is fitted with an Oyster bracelet and Easylink Oysterlock clasp. A striking blend of performance and prestige.