The Cosmograph Daytona 126503 by Rolex is an Oyster model with a 40 mm case, crafted from a combination of Stainless Steel and Yellow Gold. The case is waterproof to a depth of 100 meters (330 feet), and it features a fixed bezel made of yellow gold. The watch has a black dial with golden counter rings and a three-piece solid link Oyster bracelet.
Powered by the Perpetual, self-winding mechanical chronograph movement, the watch is equipped with Rolex's calibre 4131, offering a power reserve of approximately 70 hours. The Cosmograph Daytona is designed with a tachymetric scale, three counters, and pushers, making it the ultimate tool for timing endurance racing. The bezel’s tachymetric scale allows for reading average speeds over a given distance based on elapsed time, ensuring optimal legibility for measuring speeds up to 400 units per hour, in either kilometers or miles.
The black dial is enhanced with 18 ct gold appliqué hour markers and hands, featuring a Chromalight display for exceptional legibility. This design enables drivers to accurately track their lap times and strategies.
The watch also features Yellow Rolesor, a signature combination of gold and steel that blends the luster and nobility of gold with the strength and reliability of steel. This distinctive feature has been a hallmark of Rolex since the early 1930s and is a key element of the Oyster collection.
