The Oyster Perpetual Cosmograph Daytona in platinum with an ice-blue dial and contrasting counter rings. It features an Oyster bracelet and a chestnut brown Cerachrom bezel with tachymetric scale.
This model features an ice-blue dial with spray-coated 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.
A key part of the model’s identity is the bezel moulded with a tachymetric scale for measuring average speeds of up to 400 miles or kilometres per hour. The monobloc Cerachrom bezel in high-tech ceramic offers a number of advantages: it is corrosion resistant, virtually scratchproof and the colour is unaffected by UV rays.
This extremely durable bezel also offers an exceptionally legible tachymetric scale, thanks to the deposition of a thin layer of platinum in the numerals and graduations via a PVD (Physical Vapour Deposition) process. The monobloc Cerachrom bezel is made in a single piece and holds the crystal firmly in place on the middle case, ensuring waterproofness.
Rare and precious, platinum is striking for its silvery whiteness and vibrant luminosity. It is among the densest and heaviest metals in the world, distinguished by unique chemical and physical properties such as exceptional corrosion resistance.
Paradoxically, it is also soft, elastic and highly malleable, which makes machining and polishing especially difficult, demanding an extremely high degree of skill. Rolex always uses 950 platinum, an alloy consisting of 950‰ (thousandths) platinum, painstakingly crafted in-house by the fine metalworkers at Rolex. The noblest of metals for the finest of watches.
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
Type
- Oyster, 40 mm, platinum
Diameter
- 40 mm
Material
- Platinum
Bezel
- Chestnut brown monobloc Cerachrom bezel in ceramic with moulded numerals and graduations
Oyster Architecture
- Monobloc middle case, screw-down case back and winding crown
Winding crown
- Screw-down, Twinlock double waterproofness system
Crystal
- Scratch-resistant sapphire, Cyclops lens over the date
Water Resistance
- Waterproof to 100 metres/ 330 feet
Movement
Type
- Perpetual, mechanical chronograph, self-winding
Calibre
- 4131, Manufacture Rolex
Precision
- -2/+2 sec/day, after casing
Oscillator
- Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
Winding
- Bidirectional self-winding via Perpetual rotor
Power reserve
- Approximately 72 hours
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
Bracelet
Type
- Oyster, three-piece solid links
Bracelet Material
- Platinum
Clasp
- Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
Dial
Type
- Ice blue
Details
- Highly legible Chromalight display with long-lasting blue luminescence
Case reference 126506
Bracelet reference 78HA06