Rolex - Daytona 40mm Artisans De Genève La Montoya YG/YG Black Skeleton Dial Sonic SA4130

Sonic Factory Rolex Daytona Artisans De Genève La Montoya SONIC Yellow Gold Best Edition Black Skeleton Dial Black Tachymeter Bezel on Solid 904L Stainless Steel Bracelet with 18K Yellow Gold Plating, SA4130 Movement

Rolex Daytona Artisans de Genève La Montoya 40 mm Skeletonized Custom Watch

The Rolex Daytona Artisans de Genève La Montoya is an extensively customized Daytona created by independent Swiss watch customization atelier Artisans de Genève around Colombian racing driver Juan Pablo Montoya. The project grew from Montoya’s personal connection with the Daytona and motor racing, developing in 2018 into the distinctive La Montoya creation. Rather than simply changing the dial colour or adding decorative details, the project reworked the familiar Daytona architecture with an extensively skeletonized dial and Calibre 4130, a forged carbon tachymeter bezel and blue, yellow and red accents inspired by Colombia, giving the watch a more mechanical and motorsport-driven character.

The original La Montoya was based on a 40 mm steel Daytona and produced in a limited series of 50 pieces. What separates it from a standard Daytona is not one material or colour change, but the combination of an openworked mechanical display visible from the front, a forged carbon bezel, racing-inspired colours, a transparent sapphire caseback and a skeletonized precious-metal rotor. For those who appreciate the classic proportions of the Daytona but want greater mechanical visibility, a stronger racing identity and the character of independent customization, La Montoya offers a distinctly different interpretation of the familiar chronograph.

Product Features

• Classic 40 mm Daytona Proportions Preserve the Familiar Racing Character

La Montoya retains the classic 40 mm proportions of the Cosmograph Daytona, so the familiar round case, three-counter chronograph layout, screw-down chronograph pushers and sporting Oyster profile remain immediately recognizable. Artisans de Genève did not rely on a larger case to emphasize the transformation, instead rebuilding the visual details within the established Daytona proportions.

As a result, even after extensive skeletonization and material changes, La Montoya retains the compact racing character associated with the Daytona. On the wrist, it preserves the mature balance of the original 40 mm format while revealing far greater visual complexity when viewed up close.

• Skeletonized Dial and Calibre 4130 Create Layered Mechanical Depth

The most striking transformation of La Montoya is the conversion of the conventional dial into an openworked structure together with the extensive skeletonization and refinishing of Calibre 4130. Artisans de Genève disassembled the movement and reworked bridges and related components through cutting, openworking, beveling and surface finishing, allowing gears, bridges and chronograph mechanisms to become directly visible from the front. Components normally concealed inside the case therefore become an integral part of the watch’s visual identity.

This fundamentally changes the viewing experience. The dial, chronograph counters and internal mechanism occupy several visual levels, and slight movements of the wrist cause different bridges, gears and polished edges to interact with the light. Compared with the relatively enclosed dial of a standard Daytona, La Montoya delivers a stronger sense of mechanical movement and spatial depth, making the exposed construction one of its most compelling features for enthusiasts of skeletonized watchmaking.

The project also holds particular significance within the history of Artisans de Genève. La Montoya represented an important early exploration of fully skeletonizing Calibre 4130, meaning the openworked treatment serves not merely as decoration but as a complete mechanical design language extending from the dial into the movement.

• Blue, Yellow and Red Details Bring Montoya’s Racing Identity to the Dial

La Montoya incorporates blue, yellow and red details within the chronograph displays and hands, referencing the colours of Juan Pablo Montoya’s native Colombia. Instead of applying a large national flag motif, the colours appear through smaller chronograph elements, creating vivid but controlled accents within the exposed mechanical architecture.

These colours also provide useful visual direction across the complex openworked dial. Against the predominantly metallic and dark mechanical background, blue, yellow and red naturally draw attention toward the chronograph displays, connecting motorsport, Montoya’s personal identity and the functional layout. On the wrist, this colour combination is also one of the easiest signatures by which La Montoya can be recognized.

• Distinctive Chronograph Hands Reinforce the Racing-Instrument Character

Artisans de Genève reworked several chronograph hands rather than retaining the complete standard Daytona configuration. The design includes distinctive subdial hands and a central chronograph seconds hand with a prominent red arrow-like visual treatment. Individual components receive specific polishing and surface treatments to give them clearer definition against the skeletonized background.

Although relatively small, these changes noticeably alter the personality of the dial. Compared with the more uniform hand design of a standard Daytona, the colourful chronograph hands give La Montoya a stronger racing-instrument character and further connect the project with Juan Pablo Montoya’s motorsport background.

• Steel Case and Forged Carbon Bezel Strengthen the Motorsport Character

La Montoya retains the steel foundation of the Daytona case while replacing the conventional tachymeter bezel with one machined from forged carbon. The contrast between cool-toned metal and dark carbon introduces a more technical material character associated with contemporary motorsport while preserving the tachymeter scale as one of the Daytona’s defining racing references.

Forged carbon has an inherently irregular texture, so its appearance is more organic and mechanical than the uniform surface of conventional metal or ceramic. The dark bezel also creates a strong visual boundary around the complex openworked dial, helping the blue, yellow and red racing details and exposed mechanism become the central focus.

The steel case surfaces are also reworked through combinations of brushed and sandblasted finishes, reducing the emphasis on traditional high polish. On the wrist, steel maintains the familiar solidity of the Daytona, while forged carbon introduces a more modern, technical racing atmosphere. Together, the materials create a more coherent expression of La Montoya’s distinctive customization than the carbon bezel would achieve on its own.

• Transparent Sapphire Caseback Extends the Mechanical View to the Reverse

La Montoya features a transparent sapphire caseback that reveals the extensively reworked Calibre 4130 from the reverse. On a conventional Daytona, the movement is normally concealed from view, whereas La Montoya allows the mechanical architecture to become part of the exterior design from both sides of the watch.

This gives the watch considerable visual interest even when it is removed from the wrist. Turning it over reveals the openworked bridges, gear structures and winding rotor from another perspective, complementing the mechanical depth visible through the front. Individual numbering and hand-finished details on certain components further reinforce the special-project character of the watch.

• 22K Grey-Gold Skeletonized Rotor Creates a Visual Focus on the Caseback

Visible through the sapphire caseback is the 22K grey-gold rotor created by Artisans de Genève for the original La Montoya. Its openworked construction and detailed finishing establish a clear visual focal point within the exposed movement without introducing the more pronounced warmth of traditional yellow gold.

Grey gold also fits naturally with the overall palette of the watch. Its restrained precious-metal appearance complements the cool steel and dark mechanical components while adding a more refined custom detail. As the rotor moves with the wearer’s wrist, the caseback gains an additional dynamic element that makes the mechanical display engaging even when viewed from behind.

• Three-Counter Chronograph Layout Preserves the Core Daytona Identity

Despite the extensive skeletonization, La Montoya retains the fundamental three-counter chronograph arrangement associated with the Daytona. The three chronograph zones remain visually recognizable but are reinterpreted through the openworked architecture, coloured details and distinctive hands.

This is important because it prevents La Montoya from becoming a skeleton watch completely disconnected from its original platform. The Daytona’s motorsport chronograph identity remains recognizable at first glance, while closer inspection reveals substantial differences in mechanical presentation, colour and materials. This balance between the recognizable original and extensive personalization is one of the project’s strongest visual qualities.

• Limited to 50 Pieces, Reinforcing the Original La Montoya Project Identity

The original La Montoya introduced in 2018 was produced in a limited series of 50 pieces. Its distinction lies not only in the number produced but also in the extensive disassembly, skeletonization, refinishing and reassembly required for each watch, giving the hand-finished transformation an important role in the character of the project.

From a collecting perspective, the limited production further establishes La Montoya as an important early Artisans de Genève project. It reflects Juan Pablo Montoya’s personal relationship with the Daytona and motorsport while also representing a significant stage in the atelier’s exploration of complete movement skeletonization.

Summary

The defining appeal of the Rolex Daytona Artisans de Genève La Montoya lies in how it transforms the Daytona into an openworked expression of mechanical watchmaking and personal racing identity without abandoning the classic 40 mm motorsport proportions. The skeletonized dial and extensively reworked Calibre 4130 bring the mechanism directly into the visual design, while the forged carbon tachymeter bezel introduces a contemporary racing material. Blue, yellow and red chronograph details further connect the watch with Juan Pablo Montoya and his Colombian heritage.

Turn the watch over and the transparent sapphire caseback, exposed movement and 22K grey-gold skeletonized rotor continue the mechanical viewing experience. Its appeal therefore goes beyond simply changing the appearance of a Daytona: the dial, bezel, hands, movement finishing and caseback presentation work together to create a complete visual language while preserving the recognizable foundation of the original racing chronograph.

For those who prefer the traditional factory configuration of the Daytona, La Montoya represents a deliberately more expressive direction. For collectors who want the familiar proportions of a Daytona combined with visible mechanics, independent hand-finishing, motorsport culture and a highly individual aesthetic, however, it delivers an experience that a conventional production model does not offer. The original 50-piece production and its importance in Artisans de Genève’s early exploration of fully skeletonized Calibre 4130 movements give La Montoya an additional layer of project history and collector distinction.