Rolex - Daytona 126518LN Gain Weight 40mm YG/RU Turquoise Blue/Stk BTF DD4131

BTF Factory Rolex Cosmograph Daytona 126518LN Best Edition Turquoise Blue Dial Black Subdials With Stick Markers on Oysterflex Rubber Strap, DD4131 Movement (Increased In Weight To Approximately 162 Grams)

Rolex Cosmograph Daytona 126518LN Product Description

Product Description

The Rolex Oyster Perpetual Cosmograph Daytona 126518LN continues the distinctive professional chronograph design of the Cosmograph Daytona, combining 18 ct yellow gold with black Cerachrom ceramic elements to create a distinctly modern aesthetic.

As one of the notable references in the Daytona collection, the 126518LN retains the defining design elements closely associated with the model's motor-racing heritage, including the tachymetric bezel, three-counter chronograph display and clearly arranged timing indications. The addition of the Oysterflex bracelet creates a striking contrast between the precious-metal case and the sportier black bracelet, becoming one of the most recognizable characteristics of this reference.

The watch is powered by the Rolex-manufactured calibre 4131, a self-winding mechanical chronograph movement. Combining the classic Daytona design language with precious-metal construction, professional chronograph functionality and a contemporary sporting character, the 126518LN is available with a variety of official dial configurations, allowing different visual expressions while retaining the same fundamental design and technical architecture.

Product Features

• 18 ct Yellow Gold Oyster Case

The watch features a 40 mm Oyster case crafted from 18 ct yellow gold. Its construction consists of a monobloc middle case, screw-down case back and screw-down winding crown, preserving the compact yet powerful proportions characteristic of the Cosmograph Daytona.

Rolex operates its own exclusive foundry for the production of the 18 ct gold alloys used in its watches. From the casting of the raw materials through to final processing, production is carried out according to the brand's own standards to ensure consistent quality, appearance and stability of the precious metal.

• Black Cerachrom Tachymetric Bezel

The 126518LN is fitted with a black monobloc Cerachrom ceramic bezel featuring the Daytona's characteristic tachymetric scale.

Cerachrom is a high-technology ceramic developed by Rolex. It offers excellent resistance to corrosion and scratches, while its colour is highly resistant to the effects of ultraviolet rays.

Used in conjunction with the central chronograph seconds hand, the tachymetric scale enables average speeds to be calculated over a given distance, with readings of up to approximately 400 miles or kilometres per hour.

• Professional Chronograph Display

The watch features the classic three-counter chronograph layout associated with the Cosmograph Daytona.

The central chronograph seconds hand measures elapsed seconds, while the 30-minute counter is positioned at 3 o'clock, the 12-hour counter at 9 o'clock and the small seconds display at 6 o'clock.

The clearly arranged chronograph indications facilitate the reading of different timing information and form one of the most recognizable design elements of the Cosmograph Daytona.

• Calibre 4131 Self-Winding Mechanical Chronograph Movement

The 126518LN is powered by calibre 4131, a self-winding mechanical chronograph movement developed and manufactured by Rolex.

Calibre 4131 uses a column wheel and vertical clutch to control the chronograph functions, contributing to precise and reliable starting, stopping and resetting.

Automatic winding is provided by the Perpetual rotor, while a blue Parachrom hairspring and Paraflex shock absorbers enhance the movement's stability when exposed to temperature variations, magnetic fields and everyday shocks.

• Oysterflex Bracelet

The 126518LN is fitted with a black Oysterflex bracelet.

Although the Oysterflex has a distinctly sporty appearance, its construction differs from that of a conventional rubber strap. Its internal structure consists of flexible, curved metal blades overmoulded with high-performance black elastomer, combining structural stability with flexibility on the wrist.

Cushions on the inner side of the bracelet help stabilize the watch on the wrist while enhancing everyday wearing comfort.

• Oysterlock Safety Clasp and Glidelock Extension System

The Oysterflex bracelet is equipped with a folding Oysterlock safety clasp designed to reduce the risk of accidental opening.

It also features the Rolex Glidelock extension system, allowing fine adjustment of the bracelet length without the use of specialized tools and enabling the wearer to adapt the fit as required.

• 100-Metre Water Resistance

The watch is officially waterproof to a depth of 100 metres or 330 feet.

The screw-down winding crown incorporates the Triplock triple waterproofness system and works together with the screw-down case back and Oyster case construction to provide reliable protection.

A scratch-resistant sapphire crystal protects the dial while maintaining clear visibility for everyday use.

• Chromalight Display

Depending on the specific dial configuration, the hands and hour markers feature a Chromalight luminescent display.

The luminescent material maintains good legibility in low-light conditions, allowing the indications to remain clearly visible under different lighting conditions.

• Multiple Official Dial Configurations

The 126518LN is not limited to a single fixed dial design.

Depending on the complete model reference, Rolex offers the watch with black, white, golden, golden and bright black, meteorite and other dial configurations.

Individual versions may differ in dial colour, counter combinations, surface finishing and hour-marker design. The exact product description should therefore correspond to the complete reference number and actual configuration of the individual watch.

Summary

The Rolex Cosmograph Daytona 126518LN continues the established and highly recognizable professional chronograph design of the Daytona, combining an 18 ct yellow gold case, black Cerachrom tachymetric bezel and Oysterflex bracelet to create a distinctive overall appearance.

The calibre 4131 self-winding mechanical chronograph movement provides the watch with comprehensive professional timing functions, while the robust Oyster case, 100-metre water resistance and Oysterflex bracelet contribute to a balanced combination of fine watchmaking, sporting character and everyday practicality.

Compared with Daytona models fitted with traditional precious-metal bracelets, the 126518LN emphasizes a more contemporary sporting character through its black Oysterflex bracelet and Cerachrom bezel while retaining the distinctive presence of 18 ct yellow gold. The combination of yellow gold, black ceramic and Oysterflex is one of the defining visual characteristics of this reference.