H. Moser & Cie. Launches Endeavour Tourbillon Skeleton

At H. Moser & Cie., minimalism is not a stylistic exercise but a clear philosophy: everything superfluous is rigorously eliminated. Recent examples such as the Streamliner Genesis 2 or the Streamliner Perpetual Moon Concept Meteorite demonstrate this approach through radically pared-back dials. The Endeavour Tourbillon Skeleton takes a different path. Here, reduction means revealing rather than concealing, placing the manufacture movement itself center stage through the dial and case back.

This openness draws on the centuries-old art of skeletonization, in which all non-load-bearing components of a movement are removed to expose the elegance of its mechanics and the complexity of its choreography. The visual and technical focal point is the flying one-minute tourbillon at 6 o’clock, seemingly suspended in space as it performs its perpetual rotation—an artisanal jewel in constant motion.

It goes without saying that the underlying manufacture caliber HMC 814 is finished to the highest standards. The bridges and mainplate are anthracite-coated and adorned with straight graining, while all edges are meticulously beveled. Particularly demanding is the finishing of the skeletonized tourbillon bridge: the tiny, intricately shaped component is carefully chamfered by hand using a diamond tool, a task requiring exceptional dexterity and patience.

From a technical standpoint, the automatic movement impresses with a double hairspring developed and produced by Precision Engineering AG, H. Moser & Cie.’s sister company. The two synchronized hairsprings compensate for each other’s gravitational effects during expansion, reducing friction and improving precision as well as isochronism. The HMC 814 also delivers a robust 72-hour power reserve. The open barrel offers a clear view of the mainspring, allowing the wearer to instantly see whether the watch is sufficiently wound—an intelligent detail that is as practical as it is visually appealing. The same applies to the skeletonized rotor, whose architecture preserves an unobstructed view of the movement through the sapphire case back.

The Endeavour Tourbillon Skeleton is housed in a 40mm red gold case with a height of just 10.7mm, lending the watch an elegant presence despite its technical complexity. It is paired with a dark brown nubuck alligator leather strap secured by a red gold pin buckle. The retail price is $99,600.

To learn more, visit H. Moser & Cie., here.