Blueprint Hard Gold Skeleton LTD 8

Architecture in Precious Motion

At the crossroads of technical drawing and haute horlogerie, MAURON MUSY presents the MU05-302 BLUEPRINT HARD GOLD SKELETON—a timepiece that turns the language of engineering into a refined mechanical sculpture.

Inspired by the precision of blueprint sketches, this limited edition of 8 pieces reveals the structure of time through depth, transparency, and light. Encased in 44mm of 18-carat “Hard Gold”, the MU05-302 combines the nobility of a precious material with the strength of architectural design, embodying the bold and avant-garde spirit of MAURON MUSY.

Mechanical Architecture: The MM01-SK Calibre

At the heart of the MU05-302 beats the skeletonised Calibre MM01-SK, an exclusive Manufacture automatic movement with bidirectional winding. Openworked to reveal its construction, the movement becomes a living framework, where every bridge, opening, and component contributes to the visual rhythm of the watch.

Operating at a frequency of 4 Hz and offering a 55-hour power reserve, the MM01-SK calibre reflects MAURON MUSY’s pursuit of mechanical performance and structural beauty. With its 167 components, 25 jewels, Swiss lever escapement, and carefully balanced proportions, it gives the BLUEPRINT HARD GOLD SKELETON both technical authority and visual depth.

A Technical Drawing Reimagined in Gold

The identity of the MU05-302 is expressed through a dial composed of six solid-machined elements, assembled with the rigour of an architectural construction. Its anodised blue finish recalls the original colour of technical plans, while 3D laser-engraved indexes and diamond-cut angles create a play of relief, contrast, and precision.

Stamped with its individual serial number out of 8, each dial reinforces the exclusivity of this creation. Rose gold diamond-polished hands with luminous tips complete the composition, ensuring clarity while echoing the precious character of the case.

nO-Ring® Technology: Innovation at the Core

The MU05-302 BLUEPRINT HARD GOLD SKELETON integrates MAURON MUSY’s patented nO-Ring® technology, a revolutionary gasket-free mechanical sealing system that ensures water resistance to 300 metres. By eliminating traditional rubber gaskets, this innovation reinforces durability and removes the need for specific maintenance linked to their replacement.

This technical achievement reflects the brand’s founding philosophy: to challenge convention while uniting performance, reliability, and design in a single mechanical object.