The Rolex Cosmograph Daytona 126508 is a luxurious, all‑gold chronograph built for both performance and prestige. Crafted from 18 ct yellow gold, its 40 mm Oyster case is paired with a matching Oyster bracelet for a bold, unified look. The fixed yellow gold bezel features an engraved tachymetric scale, ideal for measuring speed. Inside, it’s powered by Rolex’s in-house Calibre 4131, offering a 72-hour power reserve and chronograph functionality with 30-minute and 12-hour counters. The dial often blends rich gold tones with black accents, and luminous markers ensure readability in any light. With water resistance up to 100 m, this Daytona is as practical as it is opulent.