Born from Rolex's storied motorsport legacy, the Cosmograph Daytona in reference 126509-0001 is rendered in 18K white gold with a 40mm round case. The black dial is fitted with luminous index hour markers and luminescent silver-tone hands, pairing sharp legibility with a clean, monochromatic character. A fixed bezel engraved with a tachymeter scale speaks directly to the model's timing heritage.
Inside, the automatic Caliber 4131 powers the chronograph complication alongside hours, minutes, and seconds, all behind a scratch-resistant sapphire crystal. The screw-down crown contributes to 100 meters of water resistance, while the Folding Oysterlock Safety Clasp secures the Oyster bracelet firmly at the wrist. Paraflex shock absorbers and Rolex's Chronergy escapement are integrated into the movement's architecture.
This example, produced in 2024, is offered with its original box and papers. The Swiss Made designation and the breadth of functional detail — from the analog dial type to the Easylink extension system on the bracelet — make ref. 126509-0001 a compelling choice for the serious collector.
