Introduced in 2020, this sturdy and sophisticated GMT SPORT timepiece from MAURON MUSY’s ARMURE collection is inspired by motor sports and travel. Certified “SWISS CRAFTED” and strongly inspired by racing cars, the MU04 GMT SPORT watch is equipped with a second 24-hour time zone engraved on a titanium-ceramic bezel.
The GMT SPORT model is entirely crafted in titanium and its industrial design and brushed finishes endow it with a unique style that goes equally well with a driver’s helmet or a gentleman’s suit. The hybrid ceramic and titanium bezel features a 24-hour scale enabling dual-time readings, while the colour difference marks the boundary between day and night.
The entirely in-house made case represents an authentic watch exterior complication in its own right and a world-exclusive feature. MAURON MUSY is the only watch brand in the world to have developed a mechanical gasket-free water-tightness system completely free of the costly maintenance associated with polymer ageing.
This patented nO-Ring® method of mechanical gasket-free water-resistance, featuring a design whose very essence is intrinsically linked to the technology involved, requires 36 highly technical elements and ensures a waterproof seal guaranteed to 300 metres.
This robust and technological MU04 GMT SPORT model is undoubtedly the first watch with a 5-year warranty that is completely maintenance-free.
The dial is machined in a single operation using state-of-the-art laser technology. It features a very rough cast iron texture inspired by car engines. In the same spirit as the movement bridges, the hour-markers and cartouches are machined using the champlevé technique highlighting the polished script appearing in relief.
The raised numerals light up in the dark thanks to a luminescent ceramic that instils a very sporty yet highly functional spirit. Five apertures offer a sporadic view of the date disc and these indexing changes.
The 60-minute scale is engraved on an imposing sloping inner bezel ring circling the dial, while a small speedometer-like 60-second counter appears at 9 o’clock. The latter is deeply recessed on a finely microblasted structure, again highlighting the raised numerals.
The sporty wheel rim-style hands are open-worked as much as possible in order to ensure a transparent view of the watch face.
The watch is equipped with the Calibre MM01-GMT. This mechanical self-winding movement developed in collaboration with Manufacture La Joux-Perret is endowed with an optimal 55-hour power reserve. The MM01-GMT calibre drives the hours, minutes, small seconds at 9 o’clock, date at 3 o’clock and 24-hour dual-time indications.
This movement boasts unique high-end decoration, featuring bridges hollowed and micro-blasted in the centre, satin-brushed on the periphery and polished on the chamfers so as to reveal the various inscriptions in relief.
The recommended Swiss retail price of the MAURON MUSY MU04 GMT SPORT watch is CHF 12,700 for stainless steel models and CHF 13,000 for black DLC versions.
Exclusive self-winding Calibre MM01-GMT in-house made by La Joux-Perret
33 mm in diameter
6.55 mm thick
Frequency of 28,800 vph (4 Hz)
55-hour power reserve
Polished steel Swiss lever escapement
Central displays of the hours and minutes
Small seconds at 9 o’clock
Date appearing through a window at 3 o’clock
Central 24H GMT indication
Movement finishing and decoration
Snailed and hollowed bridges with micro-blasted structure, anthracite NAC coating
Micro-blasted mainplate, anthracite NAC coating
Sunburst and nickel-plated pallet bridge
Rhodium-plated and circular satin-brushed gear wheels
Steel screws with polished heads
Snailed tungsten oscillating weight with anthracite NAC coating
Grade 5 titanium
Bi-material titanium-ceramic bezel
44 mm in diameter
13 mm thick
Glare-proofed sapphire crystal and back
nO-Ring® mechanical water-tightness to 300 m. (30 ATM)
Bulk laser cutting
Galvanised cast-iron texture
Polished champlevé hour-markers and cartouches
Luminescent hybrid ceramic numerals
Luminescent-tipped diamond-polished hands
Delivered with two leather and rubber straps enabling tool-free interchangeability
Folding clasp in steel and grade 5 titanium
Stamped with the “Swiss Crafted” inscription (meaning 100% made in Switzerland)
nO-Ring® technology by MAURON MUSY