The triumph of endurance
The Oyster Perpetual Cosmograph Daytona in Oystersteel and yellow gold with a white dial and contrasting counter rings. It features an Oyster bracelet and a yellow gold bezel with an engraved tachymetric scale.
White dial.With chronograph counters
This model features a white dial with spray-coated counters, 18 ct gold appliqué 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.
The tachymetric scale. High-performance chronograph
With its tachymetric scale, its three counters and its pushers, the Cosmograph Daytona was designed to be the ultimate timing tool for endurance racing drivers. The bezel features a tachymetric scale to read average speed over a given distance based on elapsed time.
This scale offers optimal legibility, making the Cosmograph Daytona the ideal instrument for measuring speeds up to 400 units per hour, expressed in kilometres or miles.
Technical Details
Rolex Cosmograph Daytona · Reference 126503
Model case
Model case – Oyster, 40 mm, Oystersteel and yellow gold
Oyster architecture – Monobloc middle case, screw-down case back and winding crown
Diameter – 40 mm
Material – Yellow Rolesor (combination of Oystersteel and yellow gold)
Bezel – Fixed, engraved tachymetric scale in yellow gold
Crown – Screw-down, Triplock triple waterproofness system
Crystal – Scratch-resistant sapphire
Water resistance – Waterproof to 100 metres / 330 feet
Movement
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, 12-hour counter at 9 o’clock. Stop-seconds for precise time setting.
Oscillator – Paramagnetic blue Parachrom hairspring. Paraflex shock absorbers
Winding – Bidirectional self-winding via Perpetual rotor
Power reserve – Approximately 72 hours
Bracelet
Bracelet – Oyster, three-piece solid links
Material – Yellow Rolesor (combination of Oystersteel and yellow gold)
Clasp – Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Dial
Dial – White, golden counter rings
Details – Highly legible Chromalight display with long-lasting blue luminescence
Certification
Certification – Superlative Chronometer (COSC + Rolex certification after casing)
