The Oyster Perpetual Cosmograph Daytona in Oystersteel and yellow gold with a golden dial and contrasting counter rings. It features an Oyster bracelet and a yellow gold bezel with an engraved 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.
This model features a golden dial with snailed 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.
Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties.
A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.
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, Oystersteel and yellow gold
Diameter
- 40 mm
Material
- Yellow Rolesor
Bezel
- Fixed, with engraved tachymetric scale, in yellow gold
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
- Yellow Rolesor – combination of Oystersteel and yellow gold
Clasp
- Folding Oysterclasp with Easylink 5 mm comfort extension link
Dial
Type
- Golden, black counter rings
Details
- Highly legible Chromalight display with long-lasting blue luminescence
Case reference 126503
Bracelet reference 78HA03