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Endeavour Tourbillon Skeleton: The Architecture Of Transparency

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Published
02/07/2026 by

At H. Moser & Cie., minimalism is not a style so much as a philosophy. It’s all about removing in the name of revealing; about eliminating all superfluous material to lay bare the stark beauty of the mechanism. It is the brand’s signature. And with the Endeavour Tourbillon Skeleton model, Moser has pushed the concept to its limit: a fully skeletonised watch designed to retain only the essentials. Exposed, time beats to the rhythm of the one-minute flying tourbillon with a double hairspring, which appears to float weightlessly. An authentic style statement, the Endeavour Skeleton Tourbillon is the embodiment of elegance in its 40mm diameter 5N red gold case.

Transparency and symmetry are the watchwords of the Endeavour Tourbillon Skeleton model. Its structure has been designed to let light circulate, reveal depth, and create this rare sensation of clarity in an often saturated universe. Through the dial, the movement appears in all its complexity, with a readability bordering on the extreme. The bridges and main plate, treated in an anthracite shade and adorned with drawn strokes, create a clean, modern, almost sculptural geometry. In contrast, the gold-plated indices and hands confer a subtle warmth, a distinct classicism, reinterpreted with a resolutely contemporary cast.

At 6 o'clock, the flying tourbillon coolly asserts its presence – living, breathing. A reminder that, behind the apparent lightness lies absolute precision, and expertise that seeks not to impress, but to endure. A marvel of ingenuity, this self-winding HMC 814 skeleton movement is equipped with a double hairspring designed and produced in-house by H. Moser & Cie.'s sister company, Precision Engineering AG. This pair of matching hairsprings corrects the displacement of the centre of gravity during the expansion of the springs and reduces friction, significantly improving accuracy and isochronism in a continuous quest for perfection. The barrel, which has also been hollowed out, offers a direct view of the spring, allowing the wearer to check that it is wound correctly, a detail that is as aesthetic as it is intelligent. Visible through the watch is the rotor, openworked to the same degree.

Housed in a 40mm 5N red gold case, the Endeavour Tourbillon Skeleton exudes a balanced elegance. Its case middle bears the characteristic asymmetric forms of the Endeavour line on the sides. This sophisticated model embraces its complexity while opting for restraint. In a world always adding, it chooses to subtract. Not to simplify, but to reveal.

H. Moser & Cie.'s own and unique take on Haute Horlogerie. 

 

TECHNICAL SPECIFICATIONS – ENDEAVOUR TOURBILLON SKELETON
Reference 1814-0400, 5N red gold model, skeleton dial, dark brown alligator leather strap

Case
5N red gold
Diameter: 40.0mm
Height: 10,7mm 
See-through case back
Crown in 5N red gold adorned with an “M”

Dial
Fully skeletonised
Applique indices, 5N red gold finish
Leaf-shaped hour and minute hands, 5N red gold finish

Movement
Fully skeletonised HMC 814, self-winding, three-dimensional Manufacture calibre
Diameter: 32.0 mm or 141/4 lignes / height: 5.5mm
Frequency: 21,600 Vib/h
28 jewels
167 components
Automatic bi-directional pawl winding system
Gold, fully skeletonised oscillating weight
Power reserve: minimum 72 hours
Original double hairspring
One-minute flying tourbillon at 6 o'clock with skeletonised bridge 
Diamond bevelling
Main plate and bridges with anthracite finish

Functions
Hours and minutes

Strap
Hand-stitched dark brown alligator nubuck leather
5N red gold pin buckle, engraved with the Moser logo

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