Montblanc Heritage Chronométrie Exo TOURBILLON Slim 118470

MOVEMENT: The new Heritage Chronométrie Exo Tourbillon Slim is equipped with the Montblanc Manufacture Calibre MB 29.24. This slim pioneering calibre features the iconic patented Exo Tourbillon, unique to Montblanc, combined with a quick stop-second mechanism. It incorporates a micro-rotor and allows an uninterrupted view on the movement through a sapphire crystal caseback, in comparison to a standard rotor that always hides half of the movement. The whole construction measures a mere 4.5 mm in height.

The one-minute Exo Tourbillon complication, first introduced in 2010, was developed entirely in-house by the master watchmakers at the Montblanc Manufacture in Villeret. The Exo in the name is derived from the Greek for external or outside and refers to the balance with its 18 screws, which is positioned outside of the tourbillon’s rotating cage. This innovated patented mechanical architecture allows the cage to be smaller in size and free of the weight of the balance, saving more energy than a conventional tourbillon. The fact that the balance is positioned outside of the rotating cage also means that it isn’t affected by the inertia of the cage, therefore improving precision.

With test 500 hours certificate.
Two years international Guarantee Certificate.