Rolex Cosmograph Daytona 40 Ref. 126509-0001

Rolex Cosmograph Daytona 40mm Ref. 126509-0001

18 ct White Gold – Bright Black & Steel Dial – Oyster Bracelet

Overview

The Rolex Cosmograph Daytona 40mm Ref. 126509-0001 is not just a chronograph — it is a living legend of motorsport heritage and haute horlogerie. Introduced in 1963 to meet the needs of professional racing drivers, the Cosmograph Daytona quickly became the ultimate tool watch for those who live life at full speed. Today, in its 18 ct white gold execution, it remains a symbol of prestige, precision, and timeless style.

Design & Aesthetics

The 40 mm Oyster case in solid 18 ct white gold gives the watch a noble weight and a refined brilliance that only precious metal can provide. Its bright black and steel dial is striking, featuring snailed chronograph counters in metallic finish that enhance legibility and contrast beautifully with the polished white gold hour markers. Each marker and hand is coated with Chromalight, emitting a long-lasting blue glow in the dark. This ensures readability at high speed, day or night.

The fixed bezel is engraved with a tachymetric scale up to 400 units per hour, allowing wearers to measure average speed — a direct tribute to the Daytona racetrack and the world of motor racing.

Movement & Performance

At its heart lies the Rolex Calibre 4130, a self-winding chronograph movement entirely developed and manufactured in-house. Recognized for its robustness and efficiency, it features a vertical clutch and a Parachrom hairspring, ensuring precision even under shocks and temperature variations. With a power reserve of approximately 72 hours, the Daytona is as practical for daily wear as it is for professional use.

Comfort & Functionality

The watch is paired with the classic Oyster bracelet, crafted from white gold with three solid links. Its Oysterlock safety clasp prevents accidental opening, while the Easylink comfort extension link allows the bracelet length to be adjusted by 5 mm for a perfect fit. Waterproof to 100 meters (330 feet), the Daytona is versatile enough for both formal occasions and adventurous pursuits.

Key Specifications

Conclusion

The Daytona Ref. 126509-0001 is a masterpiece that combines Rolex’s mastery of mechanical chronographs with the luxury of white gold. More than a watch, it is a statement of sophistication, power, and sporting spirit. Coveted by collectors and enthusiasts worldwide, this model represents not only impeccable craftsmanship but also the thrill of speed and the timeless elegance of Rolex design.