Rolex COSMOGRAPH DAYTONA M126509-0001

REFERENCE

126509

MODEL CASE

Oyster, 40 mm, white gold

BEZEL

Fixed, with engraved tachymetric scale, in 18 ct white gold

WATER RESISTANCE

Waterproof to 100 metres / 330 feet

MOVEMENT

Perpetual, mechanical chronograph, self-winding

CALIBRE

4131, manufacture Rolex

POWER RESERVE

Approximately 72 hours

BRACELET

Oyster, three-piece solid links

DIAL

Bright black and steel

CERTIFICATION

Superlative Chronometer (COSC + Rolex certification after casing)

THE TACHYMETRIC SCALE

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.

BRIGHT BLACK AND STEEL DIAL

This model features a bright black and steel dial with snailed counters, gold applique hour markers and hands with a Chromalight display, a highly-legible luminescent material. The central sweep seconds hand allows an accurate reading of 1/8 second, while the two counters on the dial display the lapsed time in hours and minutes. Drivers can accurately map out their track times and tactics without fail.

18 CT WHITE GOLD

By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white. They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.