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Wednesday, October 28, 2026 | 3:37 PM

Renaud Tixier Unveils the Monday Skeleton: A Masterclass in Independent Watchmaking and Micro-Rotor Engineering

The independent watchmaking landscape has welcomed a compelling new chapter with the introduction of the Renaud Tixier Monday Skeleton. Building upon the foundation of the brand’s debut movement, this latest release strips away the conventional dial to reveal an extensively reworked calibre. By pairing the innovative "dancer" micro-rotor system with meticulously redesigned bridges and elaborate, in-house hand finishing, the young independent brand has transformed its signature mechanism into an architectural work of art.

The skeletonised design gives the Monday line a sharper, more distinct identity. Rather than hiding the mechanics behind a traditional dial, the watch embraces its substantial thickness, turning it into a tangible asset through a layered, three-dimensional architecture that commands attention from every angle.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Initial Thoughts

The arrival of the Monday Skeleton marks an important milestone for Renaud Tixier. Founded in 2024, the independent venture brings together two formidable talents from different generations of Swiss watchmaking: industry veteran Dominique Renaud, renowned as the co-founder of the legendary movement workshop Renaud & Papi, and Julien Tixier, a versatile young watchmaker whose comprehensive skill set spans everything from raw prototyping to master-level finishing.

In the broader world of horology, skeletonised watches often suffer from a familiar design pitfall. Stripping away the dial frequently removes the distinct personality of a timepiece, leading to a homogenous aesthetic where one open-worked watch looks remarkably like another. However, Renaud Tixier’s core identity is firmly rooted in mechanical engineering and high-end craftsmanship. By exposing their debut calibre in all its complexity, the watchmakers have arguably endowed the Monday Skeleton with a far stronger and more compelling character than its predecessors, which featured more conventional and arguably conservative dials.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

The true raison d’être of the Monday collection is its ingenious "dancer" micro-rotor system. Developed by Dominique Renaud, who drew unexpected inspiration from the energy recovery systems utilized in hybrid automotive powertrains, this mechanism is designed to dramatically increase winding efficiency. Traditional micro-rotors often struggle with inertia due to their smaller radius, frequently failing to capture the energy from minor wrist movements. To solve this, the Renaud Tixier system incorporates a nested arrangement of platinum rotors connected via an integrated spring-loaded flywheel. This auxiliary propulsion spring stores and releases energy to accelerate the primary rotor, ensuring that even the most subtle gestures are efficiently harnessed.

This reimagined micro-rotor is intended to be just the first of seven planned technical projects from the brand—hence the clever "Monday" moniker. Each upcoming project is designed to directly address and solve specific limitations inherent to traditional mechanical watchmaking systems. Consequently, a significant portion of the watch’s allure lies in its intellectual and conceptual nature.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Despite utilizing the same mainspring barrel and balance wheel as the first-generation calibre, the open-worked calibre RVI2025 has undergone subtle technical refinements. These optimizations have successfully extended the power reserve by 20%, bringing it to a robust 72 hours. Nevertheless, the movement continues to beat at a traditional, leisurely frequency of 2.5 Hz (18,000 vibrations per hour), a characteristic that likely reflects Dominique Renaud’s well-known affinity for slow-beat movements.

Priced at CHF 129,000 before taxes, the Monday Skeleton represents a substantial financial investment for a time-only wristwatch. Yet, when evaluated against the backdrop of labor-intensive in-house finishing, small-scale production economics, and the realities of the high-end independent market, the pricing is understandable. It positions the watch competitively alongside conceptually similar independent creations, such as the Romain Gauthier Insight Micro-Rotor Squelette, which debuted at a similarly ambitious price point years prior.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Pleasing Parallax

As micro-rotor calibres go, the Monday’s movement is an unusually well-suited candidate for open-working, primarily due to its distinct architecture and relative thickness. Micro-rotors are typically deployed by watchmakers striving to make automatic movements as thin as possible, often by sinking the oscillating weight into the exact same plane as the gear train and escapement.

The Monday, however, was never conceived as an exercise in ultra-thin watchmaking. Despite displaying only the hours, minutes, and small seconds, the watch itself is thicker than a standard sports chronograph like a Rolex Daytona. The calibre RVI2025 alone measures nearly 7 mm in thickness, making it roughly 2.7 times thicker than Patek Philippe’s iconic micro-rotor calibre 240, and about 70% thicker than a robust full-rotor automatic like Rolex’s calibre 7140.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Rather than pursuing thinness, the watch was developed as a rolling laboratory to showcase the proprietary "dancer" winding system. Fortunately, this unexpected thickness yields significant aesthetic dividends in a skeletonised layout. The physical depth of the movement, characterized by multiple interacting layers and exceptional finishing, creates a pleasing parallax effect when viewed from varying angles on the wrist.

Furthermore, the architectural layout of the movement has been comprehensively revised for its starring role on the dial side. While many open-worked calibres ultimately suffer from visual clutter and chaos, the calibre RVI2025 has been meticulously engineered for a cohesive and harmonious appearance. A recurring motif of graceful, curved bridges dominates the design, most notably on the dial side.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

The primary visual anchor is the arching, black-polished bridge housing the winding system positioned at the nine o’clock position. This fluid architecture represents a significant departure from the original Monday model, which revealed a much more utilitarian and restrained bridge form through a smaller aperture on an otherwise solid dial. This curvaceous design language is successfully mirrored by the dial-side barrel bridge, as well as the rotor and balance bridges visible through the sapphire case back, resulting in a rare level of aesthetic consistency across both sides of the watch.

The Case and Dial Take a Backseat

In stark contrast to the extravagant complexity of the movement, the exterior case and dial elements adopt a more supportive, understated role. Crafted from 18k white gold, the 40.8 mm case remains largely unchanged from the debut iterations of the collection. Manufactured by a top-tier specialist supplier, the case measures a substantial 12.6 mm in thickness, imparting a reassuring, solid heft to the piece. The flanks of the case feature recessed channels embellished with delicate freehand engraving, catching the light dynamically at arm’s length.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Given the deeply skeletal nature of the watch, the dial has been reduced to its absolute essentials: simple, unobtrusive chapter rings that demarcate the hours and minutes, paired with an off-centre running seconds sub-dial. While earlier editions of the Monday occasionally fluctuated between unassuming and overly ornate dial layouts, this Skeleton edition strikes a commendable balance between high legibility and visual minimalism.

Full-Featured Finishing

A close inspection of the Monday Skeleton reveals a staggering array of fine-watchmaking details, including no fewer than 238 hand-polished inward angles. While collector enthusiasm for inward angles sometimes outweighs their pure aesthetic function, the quality of the anglage on display here is undeniably exceptional.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

The movement is further elevated by a comprehensive array of traditional hand-finishing techniques. Among the standout features are the rounded, mirror-polished bridges for the train wheels on both the top and bottom plates, alongside a hand-hammered ratchet wheel. This ratchet wheel is further embellished with translucent flinqué grand feu enamel, meticulously color-matched to the coordinating hands and chapter rings.

Admittedly, the sheer density of ornamentation borders on extravagant, but that exuberant display is precisely where much of the appeal of skeletonisation lies. Within that context, the extraordinary amount of human labor and craftsmanship expended on the finishing feels entirely appropriate.

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Crucially, all of this finishing work is executed entirely in-house at the brand’s specialized atelier in Tolochenaz, Switzerland, rather than being outsourced to third-party specialists—a practice that has become increasingly common among newer independent brands. While the end visual result may be hard to distinguish from outsourced work, this commitment to vertical integration underscores the young brand’s serious philosophy and its uncompromising dedication to mastering every minute detail.

Key Facts

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Renaud Tixier Monday Skeleton

Diameter: 40.8 mm
Height: 12.6 mm
Material: 18k white gold
Crystal: Sapphire
Water resistance: 30 m

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Movement: Cal. RVI2025
Functions: Hours, minutes, small seconds
Frequency: 18,000 vibrations per hour (2.5 Hz)
Winding: Automatic, with "dancer" micro-rotor
Power reserve: 72 hours

Strap: Alligator leather with matching pin buckle

Renaud Tixier’s Monday Skeleton Makes Depth a Virtue | SJX Watches

Limited edition: 15 pieces in each color
Availability: Direct from Renaud Tixier
Price: CHF 129,000 excluding taxes

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