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Montblanc Unveils Star Legacy Suspended Exo Tourbillon with wooden dial
Montblanc Unveils Star Legacy Suspended Exo Tourbillon with wooden dial
While the Villeret manufacture frequently draws inspiration from its historical pocket watch movements, it also looks ahead to the future by innovating existing mechanisms. One notable example is the patented Exo Tourbillon, which boasts enhanced energy efficiency and timekeeping stability. Now, the brand has unveiled what might be its most stunning iteration of this tourbillon: the Star Legacy Suspended Exo Tourbillon. It features an artistically engraved dial crafted from walnut wood and gold, a combination that creates a rich appearance reminiscent of ancient Roman aesthetics.

A limited edition of eight pieces
Goddess Minerva

Finally, the ring around the tourbillon has also been adorned with an engraving of the laurel tree pattern. And once again, it’s made of gold to contrast with the surrounding wood. Together, the engravings on the entire dial take over 70 hours to complete, with the engraving of the Minerva Goddess itself taking over 50 hours of handwork.
Notably, the handwork is not only impressive in terms of craftsmanship but also in terms of design. The use of gold and wood perfectly complements each other and creates a rich, warm look, yet the two materials are different enough in texture and sheen, so there’s a good amount of contrast and depth. And the symmetrical arrangement of the dial also allows for a more magnificent look after the regal decorations are applied.

Engraved wood and gold dial
Exo Tourbillon
First, by relocating the balance wheel outside the tourbillon cage, it allows for a larger balance wheel than usual. Traditionally, the size of a balance wheel would need to match that of the cage, presenting a dilemma: a larger cage results in more friction and wasted energy, whereas a larger balance wheel enhances inertia and timekeeping stability. Here, the balance wheel is substantial, measuring almost 1.45 cm in diameter.
Second, with the cage having no need to enclose the balance, it can be designed to be as small as possible (as long as it encloses the escapement). Here, the cage is small and lightweight, discreetly positioned beneath the balance.
In short, the Exo Tourbillon offers two advantages: not only does it reduce the cage’s size to enhance energy efficiency, but it also accommodates a larger balance wheel, thereby improving timekeeping stability.

The MB M16.68
Montblanc Star Legacy Suspended Exo Tourbillon Limited Edition Ref. 131624 Specs and Price
Functions: Hours, minutes, seconds, and tourbillon
Case: 44.8 mm x 15.3 mm; 18k rose gold; water resistant to 30 m
Strap: Alligator strap with gold folding clasp
Limited edition: 8 pieces
Montblanc