The Rolex Cosmograph Daytona Ref. 126508-0008 stands as a testament to Rolex’s commitment to excellence, combining high-performance chronograph functionality with the opulence of 18 ct yellow gold. Designed for endurance racing drivers, this timepiece is both a precise instrument and a symbol of luxury.
Design and Materials
The 40 mm Oyster case, crafted from solid 18 ct yellow gold, exudes a refined sophistication while ensuring durability. The fixed bezel features an engraved tachymetric scale, allowing drivers to measure average speeds up to 400 units per hour, whether in kilometers or miles. The bright green and golden dial, adorned with spray-coated counters, offers optimal legibility and a striking aesthetic.
The dial’s luminous Chromalight display ensures visibility in low-light conditions, with 18 ct gold applique hour markers and hands enhancing its luxurious appeal. This meticulous attention to detail reflects Rolex’s dedication to both form and function.
Movement and Performance
At the heart of this model lies the Rolex Caliber 4131, a self-winding mechanical chronograph movement entirely developed and manufactured by Rolex. This movement boasts a power reserve of approximately 72 hours and operates at a frequency of 28,800 vibrations per hour. Incorporating Rolex’s patented Chronergy escapement and Paraflex shock absorbers, the Caliber 4131 offers enhanced efficiency, precision, and resistance to shocks and magnetic fields.
The watch is certified as a Superlative Chronometer, ensuring exceptional performance with a precision of −2/+2 seconds per day after casing.
Bracelet and Clasp
The watch 126508-0008 is fitted with the exclusive Oyster bracelet, crafted from 18 ct yellow gold. Comprising three-piece solid links, the bracelet is designed for optimal comfort and flexibility, gently conforming to the wrist’s contours. It features a folding Oysterlock safety clasp with Easylink 5 mm comfort extension link, ensuring a secure and adjustable fit.
Technical Specifications
- Reference: 126508-0008
- Case Material: 18 ct yellow gold
- Case Diameter: 40 mm
- Bezel: Fixed, with engraved tachymetric scale, in 18 ct yellow gold
- Dial: Bright green and golden with spray-coated counters
- Crystal: Scratch-resistant sapphire
- Movement: Rolex Caliber 4131, self-winding mechanical chronograph
- Power Reserve: Approximately 72 hours
- Water Resistance: 100 meters / 330 feet
- Bracelet: Oyster, three-piece solid links
- Clasp: Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
- Certification: Superlative Chronometer (COSC + Rolex certification after casing)
- Case Shape: Round
Conclusion
The Rolex Cosmograph Daytona Ref. 126508-0008 is a harmonious blend of cutting-edge technology and timeless design. Its robust construction, precise movement, and luxurious materials make it an ideal choice for those who appreciate both performance and elegance in a timepiece.

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