Tracing its origins to 1963 as a professional racing chronograph, the Cosmograph Daytona has grown into one of the most sought-after timepieces in the world. Reference 126518LN carries that heritage forward, housing the automatic Caliber 4131 — equipped with a Chronergy escapement and Parachrom hairspring for resistance to magnetic interference — within a 40mm round 18K yellow gold case with a fixed bezel and screw-down crown.
The dial is cut from genuine Gibeon meteorite, and its Widmanstätten crystalline structure means no two examples share the same pattern. Luminous index hour markers and luminescent gold-tone hands ensure legibility across all conditions, while scratch-resistant sapphire crystal protects the view. Chronograph, hour, minute, and second functions are all present, delivered through an analog display.
The Oysterflex band combines flexible titanium-nickel alloy blades overmoulded with high-performance rubber, offering the resilience of metal alongside the wearing comfort of an elastomer strap. The ensemble fastens with a folding Oysterlock safety clasp. This example, dated to 2025, is accompanied by its original box and papers — model reference 126518LN-0016.
