Rolex Cosmograph Daytona 2017


Rolex Cosmograph Daytona 2017


La Cote des Montres - March 22nd, 2017

Rolex is introducing three new versions of its Oyster Perpetual Cosmograph Daytona in 18 ct yellow, white or Everose gold. These versions are fitted on the innovative Oysterflex bracelet in elastomer reinforced with a metal blade, and are equipped with a monobloc Cerachrom bezel, patented by Rolex, in black ceramic. This latest evolution is a blend of high technology and sleek aesthetics, and pays tribute to the heritage of this legendary chronograph. The black bezel is reminiscent of the 1965 model that was fitted with a black Plexiglas bezel insert.

Like all Rolex watches, these new Cosmograph Daytona versions carry the Superlative Chronometer certification redefined by Rolex in 2015, which ensures singular performance on the wrist.


Cerachrom bezel and measuring speed


Created by Rolex in 1963, the Oyster Perpetual Cosmograph Daytona is a watch born to race. It has established an extraordinary track record in the world of motor sport thanks to its reliability and performance. Known simply as the “Daytona”, it has risen to the rank of an icon as one of the best known chronographs in the world.

A key part of the model’s identity is the bezel engraved with a tachymetric scale for measuring average speeds of up to 400 units of distance – 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 18 ct gold or 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.


The Oyster case, symbol of waterproofness


The Cosmograph Daytona’s Oyster case, guaranteed waterproof to a depth of 100 metres (330 feet), is a paragon of robustness, proportion and elegance. Its characteristically shaped middle case is crafted from a solid block of 18 ct gold. Its fluted case back is hermetically screwed down with a special tool that allows only Rolex watchmakers to access the movement. The winding crown – fitted with the Triplock triple water-proofness system – as well as the chronograph pushers screw down securely against the case. Its crown guard is an integral part of the middle case. The crystal is made of virtually scratchproof sapphire. The water-proof Oyster case provides optimum protection for the Cosmograph Daytona’s high-precision movement.

Perpetual Calibre 4130


The Cosmograph Daytona is equipped with calibre 4130, a self-winding mechanical chronograph movement entirely developed and manufactured by Rolex. Its architecture, a composite of Rolex technology, was completely re-engineered: the number of components for the chronograph function was reduced significantly, thereby enhancing the movement’s reliability.a fonction chronographe, améliorant d’autant sa fiabilité.

The robust chronograph is engaged by a mechanism with a column wheel and vertical clutch, allowing an instantaneous and extremely precise start. The oscillator, the true heart of the watch, has a blue Parachrom hairspring patented and manufactured by Rolex in an exclusive alloy. Insensitive to magnetic fields, the Parachrom hairspring offers great stability in the face of temperature variations and remains up to 10 times more precise than a traditional hairspring in case of shocks. A Rolex overcoil ensures its regularity in any position. Calibre 4130 is equipped with a self-winding module featuring a Perpetual rotor and boasts a power reserve of approximately 72 hours.


Oysterflex bracelet and safety clasp


The new Cosmograph Daytona versions are fitted on an Oysterflex bracelet, developed and patented by Rolex. This technical bracelet combines in a singular way the robustness and reliability of a metal bracelet with the flexibility, comfort and aesthetics of an elastomer strap. At its core lies a superelastic metal blade overmoulded with high-performance black elastomer, a material that is particularly resistant to environmental effects and very durable. The Oysterflex bracelet is also fitted with an 18 ct yellow, white or Everose gold Oysterlock safety clasp that prevents accidental opening. It is equipped with the ingenious Rolex-patented Easylink rapid extension system that allows the wearer to easily increase the bracelet length by approximately 5 mm, for additional comfort in any circumstance.

Superlative Chronometer Certification


Like all Rolex watches, the Cosmograph Daytona is covered by the Superlative Chronometer certification redefined by Rolex in 2015. This exclusive designation testifies that the watch has successfully undergone a series of tests conducted by Rolex in its own laboratories according to its own criteria, which exceed watchmaking norms and standards. The certification applies to the fully assembled watch, after casing the movement, guaranteeing superlative performance on the wrist in terms of precision, power reserve, waterproofness and self-winding. The precision of a Rolex Superlative Chronometer after casing is of the order of −2/+2 seconds per day, or more than twice that required of an official chronometer.

Superlative Chronometer

Precision after casing of –2/+2 seconds per day 

The Superlative Chronometer status is symbolized by the green seal that comes with every Rolex watch and is coupled with an international five-year guarantee.

Rolex Cosmograph Daytona 2017

Case ref. 116518 LN Oysterflex bracelet Superlative Chronometer certification*

Case :Oyster in 18 ct yellow gold, polished and satin finish
Monobloc middle case, screw-down case back, winding crown and chronograph pushers
Diameter :40 mm
Bezel :Monobloc Cerachrom in black ceramic, engraved tachymetric scale coated with yellow gold via magnetron sputtering
Case back :Screw-down with Rolex fluting
Winding crown :Screw-down, Triplock triple waterproofness system
Crown guard:Integral part of the middle case
Crystal :Scratch-resistant sapphire
Waterproofness :100 metres (330 feet)
Movement :Calibre 4130, Manufacture Rolex
Mechanical chronograph movement with column wheel and vertical clutch
Bidirectional self-winding via Perpetual rotor
Precision :−2/+2 sec/day, after casing
Functions :Centre hour and minute hands
Small seconds hand at 6 o’clock
Chronograph (centre hand) accurate to within ⅛ of a second
30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock
Stop-seconds for precise time setting
Frequency:28,800 beats/hour (4 Hz)
Hairspring :Paramagnetic blue Parachrom
Overcoil :Rolex
Balance wheel :Large with variable inertia
Regulating :High-precision via four gold Microstella nuts
Balance bridge:Traversing
Jewelling :44 rubies
Power reserve :Approximately 72 hours
Dial :Champagne, sunray finish, black snailed counters
Hour markers :Highly legible Chromalight appliques (long-lasting luminescence)in 18 ct yellow gold with black PVD coating
Hands :18 ct yellow gold, Chromalight
Bracelet :Oysterflex
Material :Flexible metal blades overmoulded with high-performance elastomer
Clasp :Oysterlock folding safety clasp in 18 ct yellow gold
Easylink 5 mm comfort extension link
*COSC + Rolex certification after casing