Mauron Musy MU05-103 Blueprint Titanium Skeleton: 13-Piece Edition

Key Highlights

• 13-piece limited edition in grade 5 titanium, blue anodised to evoke engineering blueprint drawings
• In-house MM01-SK calibre: 33 mm diameter, 6.55 mm thick, 55-hour power reserve, 28,800 vib/h
• Patented nO-Ring® mechanical water resistance to 300 metres, gasket-free and maintenance-free
• Six-part skeletonised titanium dial with SLN luminescent lines and rose gold diamond-polished hands
• Swiss Crafted inscription certifying 100% Swiss design and manufacture; serial number stamped on each piece
• Tool-free interchangeable leather and rubber straps included

Signature Features

Reference MU05-103 draws its visual language directly from the blueprint drawings that engineers use to define technical components before fabrication. The blue achieved here is no paint or lacquer: an advanced anodising process applied to the six-part titanium dial produces the specific wavelength associated with precision draughtsmanship. The result is a dial that reads simultaneously as technical document and collector object.

Grade 5 titanium governs the entire case: 44 mm in diameter, 13 mm thick, 36 components. Sapphire crystal, glareproofed on both dial side and caseback, keeps the skeleton calibre visible from every angle without interference from reflected light.

Movement & Materials

The MM01-SK calibre is built entirely in-house. At 33 mm diameter and 6.55 mm thick, it carries 167 components across 25 jewels, beating at 4 Hz for a 55-hour power reserve. Automatic bidirectional winding via a snailed tungsten oscillating weight with anthracite NAC coating keeps the reserve replenished through normal wear.

Finishing on the movement is extensive. Bridges are snailed and hollowed with a microblasted structure, their angles diamond-polished. The mainplate receives the same anthracite NAC treatment as the rotor. Gear wheels are rhodium-plated and circular satin-brushed; the pallet bridge carries a sunburst and nickel-plated finish. Steel screws appear with polished heads. This level of decoration is rare at any edition size; at 13 pieces, it reflects a workshop operating entirely outside volume constraints.

At night, luminescent-tipped hands in rose gold cut against the SLN lines ruled across the dial, creating the living tableau the press material describes. The distinction between the warm tone of the rose gold and the brilliant white of the luminescent indices is precise and intentional.

Heritage & Lineage

Mauron Musy was founded in 2013 in the Broye Valley, in Switzerland’s Three Lakes region, by Eric Mauron and Christophe Musy. Both came from precision mechanics, and their founding concern was not aesthetics but a specific technical problem: the polymer O-ring gasket, universal in the industry, degrades with age and demands costly servicing. Their answer was the nO-Ring® system.

The nO-Ring® requires 36 highly technical elements to achieve a mechanical seal guaranteed to 300 metres, with no polymer component in the path of the water. The system is patented and remains exclusive to Mauron Musy, the only watch brand to have commercialised a fully mechanical gasket-free water-resistance solution. For the Fondation Haute Horlogerie and those who track independent innovation outside the major fairs, including Watches and Wonders, this constitutes a genuine complication of the case rather than merely of the movement.

The Swiss Crafted label carried by the MU05-103 goes beyond the legal Swiss Made designation. It certifies that 100% of the watch was designed and produced in Switzerland, a standard the brand treats as an industrial manifesto.

Availability & Edition Details

Thirteen pieces. Each one individually serial-numbered and stamped directly on the dial. Delivered with two straps, one leather and one rubber, both interchangeable without tools via a folding clasp. The five-year guarantee covers the nO-Ring® system. No further production run is indicated.

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