With its tachymetric bezel, three counters and chronograph pushers, the Cosmograph Daytona is the ultimate timing instrument for endurance racing, allowing precise speed measurements up to 400 units per hour.
This model features a chocolate and black dial with snailed counters, 18 ct gold applique hour markers and hands with a Chromalight display, a highly-legible luminescent material.
The dial allows drivers to accurately map out their track times and tactics without fail.
Rolex Cosmograph Daytona · Reference 126505
Model case – Oyster, 40 mm, 18 ct Everose gold
Oyster architecture – Monobloc middle case, screw-down case back and winding crown
Diameter – 40 mm
Material – 18 ct Everose gold
Bezel – Fixed, with engraved tachymetric scale, in 18 ct Everose gold
Winding crown – Screw-down, Triplock triple waterproofness system
Crystal – Scratch-resistant sapphire
Water resistance – Waterproof to 100 metres / 330 feet
Movement – Perpetual, mechanical chronograph, self-winding
Calibre – 4131, manufacture Rolex
Precision – −2/+2 sec/day, after casing
Functions – Centre hour and minute hands, small seconds at 6 o’clock. Chronograph centre seconds, 30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock. Stop-seconds for exact time setting
Oscillator – Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
Winding – Bidirectional self-winding via Perpetual rotor
Power reserve – Approximately 72 hours
Bracelet – Oyster, three-piece solid links
Material – 18 ct Everose gold
Clasp – Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Dial – Bright chocolate and black
Details – Highly legible Chromalight display with long-lasting blue luminescence
Certification – Superlative Chronometer (COSC + Rolex certification after casing)
