Precision Chronograph The Cosmograph Daytona is Rolexs iconic chronograph, designed for the world of motorsport. With its tachymetric scale, high-performance movement and bold aesthetic, it has become a symbol of speed, precision and prestige since its introduction in 1963. Refined Performance This 2021 model features a 40mm case in 18ct white gold, paired with a black dial and fixed bezel. At its heart is the calibre 4130 automatic chronograph movement, offering a 72-hour power reserve. The Oyster bracelet is secured with an Easylink Oysterlock clasp, delivering both comfort and security. A luxurious take on a racing legend.