Rolex Cosmograph Daytona 40 mm Ref. 126509-0005
18 ct White Gold – Bright Blue Dial – Oyster Bracelet
Overview
The Rolex Cosmograph Daytona Ref. 126509‑0005 stands as the epitome of motorsport chronograph excellence, delivered in luxurious 18 ct white gold. With a 40 mm Oyster case, this Daytona presents a radiantly refined silhouette. The bright blue dial, enhanced by snailed chronograph counters and 18 ct gold-appliqué hour markers, balances a modern aesthetic with supreme clarity. The Chromalight luminescence on hands and indices ensures optimal legibility, even in low light, pairing functionality with prestige.
A fixed bezel in white gold, etched with an engraved tachymeter up to 400 units per hour, underscores the Daytona’s racing DNA—allowing for precise speed calculations.
At its core operates the Rolex in-house Calibre 4131—a reliable, self-winding chronograph movement featuring a column-wheel mechanism, vertical clutch, Parachrom hairspring, and Paraflex shock absorbers. It provides ~72 hours of power reserve and delivers chronometer-grade precision of ±2 seconds per day.
The Oyster bracelet, forged in white gold, delivers robustness and refined comfort. It is secured with a folding Oysterlock clasp and features a 5 mm Easylink comfort extension for adaptability and everyday ease.
Key Specifications
| Feature | Details |
|---|---|
| Reference | 126509-0005 |
| Case | 40 mm Oyster, 18 ct white gold |
| Bezel | Fixed white-gold, engraved tachymeter |
| Dial | Bright blue with snailed chronograph counters, gold-appliqué indices, Chromalight |
| Movement | Calibre 4131, in-house automatic chronograph |
| Power Reserve | ~72 hours |
| Bracelet & Clasp | Oyster bracelet, white gold, Oysterlock + Easylink |
| Water Resistance | 100 m / 330 ft |
| Certification | Superlative Chronometer (COSC + Rolex post-casing) |
Conclusion
The Daytona Ref. 126509‑0005 is a quintessential marriage of racing spirit and horological finesse. Its gleaming white-gold structure, vibrant blue dial, and precise chronograph complications position it as a timeless investment—one that delivers both heritage and lasting performance.
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