Description
REFERENCE:116509
MODEL CASE:Oyster, 40 mm, white gold
BEZEL:Fixed, with engraved tachymetric scale, in 18 ct white gold
WATER-RESISTANCE:yes
MOVEMENT:Perpetual, mechanical chronograph, self-winding
POWER RESERVE:Approximately 72 hours
BRACELET:Oyster, flat three-piece links
DIAL:Steel and black
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.
STEEL AND BLACK DIAL
This model’s Steel and black dial with snailed counters features 18 kt gold applique hour markers and hands in Chromalight, 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 KT WHITE GOLD
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 kt gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 kt 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.
