Rolex Cosmograph Daytona 40 Ref. 126509-0003

Rolex Cosmograph Daytona 40mm – 18 ct White Gold – Ref. 126509-0003

Overview

The Rolex Cosmograph Daytona Ref. 126509-0003 is the epitome of luxury and racing heritage. Crafted entirely in 18 ct white gold, it blends robustness with refined elegance. The legendary Oyster bracelet ensures comfort, strength, and a perfect fit for both casual and formal wear.

The steel & bright black dial features snailed sub-dials, 18 ct gold hands and hour markers, and a Chromalight display for outstanding legibility in the dark. The fixed white gold tachymetric bezel underscores the Daytona’s iconic link to motorsport.

At its heart, the watch is powered by the in-house Calibre 4131, a self-winding chronograph movement certified as a Superlative Chronometer (−2/+2 seconds/day). It offers a power reserve of approximately 72 hours, with a Parachrom hairspring and Paraflex shock absorbers, ensuring precision, resistance, and durability.

Key Specifications

• Reference: 126509-0003

• Case: Oyster, 40 mm, 18 ct white gold

• Bezel: Fixed, 18 ct white gold, engraved tachymetric scale

• Dial: Steel & bright black, snailed sub-dials, 18 ct gold hands & markers, Chromalight

• Crystal: Scratch-resistant sapphire

• Crown: Triplock screw-down crown

• Pushers: Screw-down chronograph pushers

• Movement: Rolex Calibre 4131, self-winding mechanical chronograph

• Power Reserve: ~72 hours

• Oscillator: Parachrom hairspring, Paraflex shock absorbers

• Bracelet: Oyster, solid links in 18 ct white gold

• Clasp: Folding Oysterlock safety clasp with Easylink 5 mm extension

• Water Resistance: 100 m / 330 ft

• Certification: Superlative Chronometer (COSC + Rolex in-house tests)

Conclusion

The Rolex Cosmograph Daytona Ref. 126509-0003 is more than a chronograph—it is a timeless expression of Rolex excellence. With its noble white-gold case, iconic design, and the powerful Calibre 4131, this watch is a true collector’s piece and a symbol of prestige that transcends generations.