- Item Code/Product Code: DTLM-40
The triumph of endurance
This Oyster Perpetual Cosmograph Daytona in white gold colour, with a steel and bright black dial and an Oyster bracelet, features an white gold colour bezel with an engraved tachymetric scale.
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.
Steel and bright black dial
With chronograph counters
This model features a steel and bright black dial with snailed counters, white gold colour 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.
White gold colour
Commitment to excellence
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality white gold colour alloys. According to the proportion of silver, copper, platinum or palladium added, different types of white gold colour 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.
The Oyster bracelet
Alchemy of form and function
The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology. And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty.
The Oyster bracelet is a perfect alchemy of form and function. First introduced in the late 1930s, this particularly robust and comfortable metal bracelet with its broad, flat three-piece links remains the most universal bracelet in the Oyster collection.
Model case
- Model case
Oyster, 40 mm, white gold colour
Oyster architecture
Monobloc middle case, screw-down case back and winding crown
Diameter
40 mm
Material
stainless steel white gold colour
Bezel
Fixed, with engraved tachymetric scale, in stainless steel white gold
Winding 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 hand at 6 o'clock. Chronograph via centre seconds hand, 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
- Bracelet
Oyster, three-piece solid links
Material
stainless steel white gold colour
Clasp
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Dial
- Dial
Steel and bright black
Details
Highly legible Chromalight display with long-lasting blue luminescence
MACHINE WARRANTY
"1 YEAR 1 MONTH 1 DAY"