The Oyster Perpetual Cosmograph Daytona in Oystersteel and yellow gold with a black 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 black 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.

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.

The new-generation Cosmograph Daytona is equipped with calibre 4131, a chronograph movement unveiled this year, entirely developed and manufactured by Rolex. A distillation of technology, this self-winding mechanical movement delivers outstanding performance in terms of precision, power reserve, convenience and reliability. It incorporates a chronograph function with a reduced number of components, thereby also enhancing the movement’s reliability. It is engaged by a robust mechanism with a column wheel and vertical clutch, allowing an instantaneous and extremely precise start. The bridges of calibre 4131 feature a Rolex Côtes de Genève decoration, which differs from the traditional Côtes de Genève by the addition of a slight polished groove between each band.

Dial

• Dial : Black, golden counter rings
• Details : Highly legible Chromalight display with long-lasting blue luminescence

Case

• Case : Oyster, 40 mm, Oystersteel and yellow gold
• Oyster architecture : Monobloc middle case, screw-down case back and winding crown
• Diameter : 40 mm
• Material : Yellow Rolesor - combination of Oystersteel and yellow gold
• Bezel : Fixed, with engraved tachymetric scale, in yellow 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
• Certification : Superlative Chronometer (COSC + Rolex certification 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 : Yellow Rolesor - combination of Oystersteel and yellow gold
• Clasp : Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link