News Basel 2011

Cosmograph Daytona

A distillation of sportiness, technology and refinement

The Watch Quote™ - April 19th, 2011



The exhilaration of driving. A passion for mechanics. The exclusive feel of noble materials. The new Oyster Perpetual Cosmograph Daytona is resolutely dedicated to those who enjoy the finer things in life. The owner of this chronograph designed with speed and performance in mind is among those who avidly take advantage of all that life has to offer, love the freedom of the open road and are not afraid to take the turns tightly.




Speed and automobile sport

Launched in 1963, the Cosmograph Daytona is closely linked to speed and automobile sport. Its chronograph movement allows short periods of elapsed time to be measured to within 1⁄8 th of a second, and the tachymetric scale on the bezel enables the instant reading of speed over a given distance. Adopted by car racing drivers for its performance, reliability and exceptional readability, this prestigious chronograph carries in red letters on its dial the name “Daytona” – the most famous motor racing circuit in the United States.




Legendary heritage and exclusive technology

With its new, exclusive monobloc black Cerachrom bezel developed by Rolex – made of an advanced ceramic virtually impervious to scratches, corrosion-resistant and non-fading – this new version of the Oyster Perpetual Cosmograph Daytona exhibits state-of-the-art technology and pays homage to its legendary heritage. Its black bezel is reminiscent of that of the 1965 model. The graduations on the Cerachrom bezel, offering perfect readabil ity, are obtained by the deposition of a fine layer of pink gold via a magnetron cathode sputtering PVD process.



This high-precision chronograph certified by the Swiss Official Chronometer Testing Institute (COSC) is driven by calibre 4130, introduced in 2000, a movement with a column wheel and vertical clutch entirely designed and manufactured by Rolex. Its revolutionary architecture, the fruit of years of research, has reduced its complexity and increased its reliability. A profusion of Rolex innovations, calibre 4130 is equipped with a Parachrom hairspring with a Breguet overcoil. The hairspring is manufactured from a new alloy, developed and produced by Rolex, which makes it insensitive to magnetic fields and up to 10 times more resistant to shocks.



The new model’s sophisticated aesthetics are underscored by the noble materials used in its construction: the Oyster case in 18 ct Everose gold, an alloy created by Rolex; the chocolate brown or ivory coloured dial with gold hour markers; and the comfortable strap in black alligator leather with an 18 ct Everose gold folding clasp and safety catch.

A distillation of sportiness, technology and refinement

Rolex Cosmograph Daytona
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Rolex Oyster Perpetual Cosmograph Daytona

Ref.: (Case – Strap) : 116515LN – Black alligator leather




Case:Type Oyster
(monobloc middle case, screw-down case back,
winding crown and chronograph pushers)
Diameter:40 mm
Material:18 ct Eversose gold, polished finish
Case back:Screw-down with Rolex fluting
Bezel:Monobloc black Cerachrom with engraved numerals
filled with pink gold via magnetron cathode sputtering
Winding crown:Screw-down, Triplock triple waterproofness system
Shoulders to protect the crown
Crystal:Scratch-resistant sapphire
Waterproofness:100 metres (330 feet)
Movement:Calibre 4130, Manufacture Rolex
Chronograph movement with column wheel and vertical clutch
Precision Officially certified Swiss chronometer
Functions:Chronograph with accuracy to 1⁄8 th of a second,
30-minute and 12-hour totalizers
Tachymetric scale on the bezel to measure speed
Small seconds hand at 6 o’clock
Stop-seconds for precise time setting
Oscillator:Frequency: 28,800 beats/hour (4 Hz)
Non-magnetic blue Parachrom hairspring
Breguet overcoil
Large balance wheel with variable inertia
High-precision regulating via four gold Microstella nuts
Traversing balance bridge
Jewelling:44 rubies
Self-winding:Winding Bidirectional via Perpetual rotor on ball bearings
Power reserve:Approximately 72 hours
Dial:Chocolate brown, totalizer borders in 18 ct pink gold
Hour markers:Gold Arabic numerals, black PVD;
phosphorescent hour markers at 3, 6 and 9 o’clock
Hands:18 ct pink gold, filled with phosphorescent material
Dial:Ivory coloured, snailed totalizers in 18 ct pink gold
Hour markers:18 ct pink gold appliques, filled with phosphorescent material
Hands:18 ct pink gold, filled with phosphorescent material
Strap:Material Black Alligator mississippiensis leather
Clasp:18 ct Everose gold Oysterlock folding clasp with safety catch

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