Rolex - Daytona 126515LN 40mm Gain Weight RG/RU Blk/RG/Stk QF V18 JH4131 Free Sprung

QF Factory Rolex Daytona 126515LN 40mm Rose Gold Best Edition Black Dial Rose Gold Subdials With Stick Markers on Oysterflex Rubber Strap, JH4131 Automatic Movement Free Sprung (Increased In Weight To Approximately 157 Grams)

Rolex Cosmograph Daytona 126515LN Product Description

The Rolex Cosmograph Daytona 126515LN continues the deep and unmistakable connection between the Daytona collection and motor racing, naturally combining professional mechanical chronograph functionality with the distinctive character of 18 ct Everose gold. The watch features a 40 mm Oyster case, a black Cerachrom ceramic tachymetric bezel and an Oysterflex bracelet, creating a refined balance between the sophistication of a precious metal and the functional character of a professional sports chronograph.

The Daytona has always been designed around speed, endurance and precise time measurement. The 126515LN retains the iconic three-counter layout and tachymetric bezel, while its combination of Everose gold, black high-technology ceramic and Oysterflex gives the watch a contemporary precious-metal sports aesthetic. The warm and refined tone of Everose gold adds distinctive character, while the black elements provide a sharper visual contrast, preserving the Daytona’s strong racing identity while making it equally suited to everyday wear.

Product Features

18 ct Everose Gold Oyster Case

The 40 mm Oyster case is crafted from Rolex’s exclusive 18 ct Everose gold. To preserve the distinctive beauty of its pink gold watches, Rolex developed and patented its own Everose gold alloy, which is cast in the brand’s own foundry. Introduced in 2005, Everose gold is used for Rolex Oyster models in pink gold.

Its warm and nuanced tone creates a distinctive yet balanced contrast with the black Cerachrom bezel and Oysterflex bracelet. The 40 mm dimensions preserve the recognizable proportions of the Cosmograph Daytona, naturally combining the substantial presence of a precious-metal watch with the compact sporting character expected from a professional chronograph.

Black Cerachrom Ceramic Tachymetric Bezel

The 126515LN features a black monobloc Cerachrom ceramic bezel with a moulded tachymetric scale. One of the defining functional elements of the Cosmograph Daytona, the tachymetric scale can be used together with the central chronograph seconds hand to read average speed over a given distance, continuing the Daytona’s close association with motor racing and speed measurement.

The Cerachrom bezel is made from high-technology ceramic with excellent resistance to corrosion and scratches, while its colour is largely unaffected by ultraviolet rays. The numerals and graduations are coated with a thin layer of platinum using a PVD process, creating excellent contrast and legibility against the black ceramic surface.

Chronograph Dial and Chromalight Display

The 126515LN collection is available with different dial designs, all retaining the characteristic chronograph layout of the Cosmograph Daytona. Small seconds are positioned at 6 o’clock, the 30-minute counter at 3 o’clock and the 12-hour counter at 9 o’clock, working together with the central chronograph seconds hand to measure elapsed time.

This three-counter arrangement is not only functional but has also been one of the Daytona’s most recognizable visual signatures for decades. The Chromalight display provides long-lasting blue luminescence in dark conditions, helping maintain excellent legibility while reinforcing the watch’s technical and sporting character.

Rolex Calibre 4131 Self-Winding Chronograph Movement

The Cosmograph Daytona 126515LN is powered by Rolex calibre 4131, a self-winding mechanical chronograph movement developed and manufactured by Rolex. It provides central hour and minute hands, small seconds at 6 o’clock, a central chronograph seconds hand, and 30-minute and 12-hour counters positioned at 3 and 9 o’clock respectively. A stop-seconds function enables precise time setting.

Calibre 4131 incorporates the Chronergy escapement, a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers. Bidirectional self-winding is provided by the Perpetual rotor, while the power reserve is approximately 72 hours.

As the chronograph movement of the current-generation Daytona, calibre 4131 combines professional mechanical timing functionality with efficiency, reliability and everyday practicality, providing the 126515LN with a modern mechanical foundation worthy of its established racing heritage.

Oysterflex Bracelet

The Oysterflex bracelet is one of the defining features of the 126515LN. Rather than a conventional rubber strap, it uses a patented construction developed by Rolex. Each bracelet section incorporates a curved flexible metal blade overmoulded with high-performance black elastomer, combining the robustness of a metal bracelet with the flexibility and comfort of elastomer.

Cushions on the inner sides of the Oysterflex bracelet help stabilize the watch on the wrist and improve comfort during extended wear. Its black appearance complements the Cerachrom bezel while emphasizing the warm tone of the Everose gold case.

The bracelet is fitted with an Oysterlock folding safety clasp designed to help prevent accidental opening, together with the Rolex Glidelock extension system. The wearer can finely adjust the bracelet length without tools for a more precise and comfortable fit.

Water Resistance to 100 Metres

The Cosmograph Daytona 126515LN uses the classic Oyster case architecture, comprising a robust monobloc middle case, screw-down case back and screw-down winding crown. The crown incorporates the Triplock triple waterproofness system, enabling water resistance to 100 metres.

A scratch-resistant sapphire crystal provides reliable protection for the dial. Together, the robust Oyster architecture, monobloc Cerachrom bezel and waterproofness system enhance reliability for everyday use, allowing the 126515LN to retain the practical qualities expected of a professional sports chronograph while offering the refined character of a precious-metal watch.

Summary

The Rolex Cosmograph Daytona 126515LN achieves a mature balance between professional mechanical chronograph functionality and everyday wearing comfort. Calibre 4131 delivers precise mechanical timing and an approximately 72-hour power reserve, while the tachymetric bezel continues the Daytona’s established connection with speed measurement. The Oysterflex bracelet, Oysterlock safety clasp and Glidelock adjustment system further enhance stability, comfort and practicality.

The appeal of this watch extends beyond the iconic identity the Daytona has built over decades. Everose gold gives the model a distinctive character without treating precious metal merely as decoration. Instead, sophisticated materials, professional chronograph mechanics and the practicality of a modern sports watch are integrated into a cohesive design, giving the 126515LN a distinctive balance of refinement, mechanical performance and wearing comfort.