Montblanc Celebrates 110 Years Of Pioneering Spirit With The Collection Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition


Montblanc presents the new Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary, a limited edition of three innovative timepieces, as part of its 110th Anniversary celebrations


Montblanc is paying tribute to 110 years of fine craftsmanship with a limited edition of three timepieces. The Montblanc Collection Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition—a wristwatch that features an in-house one-minute tourbillon, a double cylindrical balance spring and the Maison’s Heures Mystérieuses display—sets new records in terms of ultimate precision and innovation combined with artisanal aesthetic. Being completely developed and produced internally at the Montblanc Manufacture in Villeret, this exceptional timepiece celebrates creativity and tradition in the true spirit of the Maison’s 158 years of fine watchmaking heritage.


Serpentine designs

Montblanc returns to its beginnings for the development of this new timepiece by recalling the design theme of the Maison’s first fountain pen series – the historic “Rouge et Noir” line. This iconic writing instrument, with its serpent clip, was the inspiration behind this year’s new Heritage Rouge & Noir Collection, bringing a contemporary twist to the early model with a slimmer and longer silhouette, as well as incorporating modern piston technology.

A symbol of life and rebirth, the serpent has been an object of desire and fascination through the ages. A recurring motif in art and design, the mysterious creature was a rich source of inspiration during the Art Nouveau and Art Deco periods and today it provides the inspiration for Montblanc’s 110th Anniversary Collection, as can be seen on the face of this Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition timepiece, where a three-dimensional, hand-engraved, anthracite serpent has been integrated into the bezel. This historic design is also depicted on the back of the 52 mm red gold case with an elegant hand-engraving of a slithering serpent.


Mysterious hours

The serpent is just one of many captivating features on the face of the Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition. A large tourbillon, measuring 18.4mm in diameter, occupies the top half of the watch’s face, while a subdial of the same dimension at 6 o’clock shows the time display below. A closer look at it reveals an unusual set of regate-shaped hands that are not attached in the centre like a conventional timepiece, but float mysteriously above the subdial, which also displays elegant Roman numerals and rhomboid indexes on a mirrored surface. This fascinating complication called the Heures Mystérieuses is made possible thanks to two wafer-thin transparent sapphire crystal discs—one with the hour hand embossed on it, and the other with the minutes hand—which are linked to the movement and turn to indicate the time. Inspired by the mysterious clocks of the 19th century, the original designs hid the mechanism in the clock case, creating an enigma for watch connoisseurs of the day. For the Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition, however, Montblanc has decided to leave the workings of the movement on show. The absence of a dial allows each owner to fully appreciate the floating hands and the Heures Mystérieuses mechanism that propels them. Black rhodium-plated bridges and plates contrast with the highly-polished mechanical parts and highlight the finest level of finishing and decoration that is one of the signatures of the Montblanc Collection Villeret timepieces.


Tourbillon upholding the highest standards

The Montblanc Collection Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition is equipped with the hand-crafted manually-wound Calibre MB M65.63 with a one-minute tourbillon and a double cylindrical hairspring. The tourbillon is one of the most complex horological mechanisms to produce, and one of this increased size demands even more skill and expertise to create. All of its 95 components are hand-bevelled, chamfered, angled, polished and decorated in-house by Montblanc’s master craftsmen, following the same techniques of decoration as those used centuries ago. It takes a whole week to hand-bevel and hand-polish the tourbillon bridge alone, which is shaped into a double infinity symbol. This level of craftsmanship is extremely rare and only the most experienced artisans have the knowledge to produce components at this level.


The tourbillon is detached from the movement and revolves in a case of its own, making a full rotation of its axis every minute. It has a high inertia at 59 mgcm2, a weight of 1.010 grams, and a traditional frequency of 2.5 Hertz (18,000 bph). Of particular note are three mobile compensating weights, each featuring the Minerva arrow, which can be regulated by the watchmaker to obtain perfect equilibrium for the manually-wound Calibre MB M65.63 and its 46-hour power reserve.


The bi-cylindrical hairspring under the loupe

The large escapement of the Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition is composed of a bi-cylindrical hairspring that was developed by the engineers at the Montblanc Manufacture in Villeret exclusively for the Montblanc Collection Villeret. The vast majority of contemporary balance springs are flat and are wound around a common centre. In comparison, a cylindrical balance spring is wound around a vertical axis, with each turn positioned on top of the next, and with each one having the exact same distance from the centre. This original formation helps to eliminate any eccentricity of the centre of gravity. Montblanc has equipped its Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition with not one, but two cylindrical hairsprings positioned concentrically, one inside the other, each with its own diameter, but both with identical torque. The springs move in opposite directions; while one spring expands, the other contracts, further optimizing isochronism and providing ultimate precision.


Cylindrical balance springs were first used in marine chronometers at the end of the 18th century. They were regarded as the peak of excellence and performance and were installed in only the finest and most expensive marine chronometers. The accuracy of these clocks over long periods of time revolutionized navigation at sea.


Manufacturing know-how

The Montblanc Manufacture in Villeret is one of very few manufacturers with the expertise to produce its own balance springs. After intensive testing of different types of balance springs, and the metal alloy used for the wire from which balance springs are made, specialists at the manufacture are capable of producing their very-own bi-cylindrical balance springs, bringing innovation and an additional element of exclusiveness to this already exceptional timepiece strictly limited to three pieces.



Montblanc Collection Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition –3 pieces

Ident. 115934

Movement                       Montblanc Manufacture Calibre MB M65.63

Type of movement           Hand-wound mechanical movement with one-minute tourbillon

and bi-cylindrical hairspring with double infinity tourbillon bridge

Dimensions                     16¾ lines (38.40 mm); height = 10.30 mm

No. of components           284, including 95 for the tourbillon cage

No. of rubies                   26

Power reserve                 Approx. 46 hours

Balance                          Screw balance, diameter = 14.5 mm, moment of inertia = 59 mgcm²

Frequency                       18,000 semi-oscillations per hour (2.5 Hz)

Hairspring                      Bi-cylindrical hairspring with double Phillips terminal curves

Tourbillon                      One-minute tourbillon

Main plate                      Black rhodium-plated nickel silver decorated with circular-graining finishing on both sides

Bridges                           Black rhodium-plated nickel silver decorated with circular-graining decoration on both sides

Going-train                     Gold-plated, faceted arms, diamond-polished surfaces

Displays                         Mysterious hours and minutes at 6 o’clock



Case                               18K red gold

Crystal                           Scratch-resistant, domed sapphire crystal with antireflective treatment on both surfaces

Back                               18K red gold with hand-engraved Serpent decoration

Dimensions                     Diameter = 52 mm; height = 14.6 mm

Watertightness                3 bar

Dial                                Decorations on the movement parts to reveal the “mysterious hours” mechanism, three dimensional hand-engraved anthracite Serpent integrated into the bezel, black metallic hour and minute hands in regate-shape on sapphire crystal discs

Crown                            18K red gold with Montblanc emblem in mother-of-pearl

Limitation                      3 pieces


Certified by the Montblanc Laboratory Test 500


For more information, visit


Enquiry hotline: 8200 3088


Montblanc Collection Villeret Tourbillon Bi-Cylindrique 110 Years Anniversary Limited Edition – 3 pieces


Ident: 115934

Price: EUR 280,000