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mkt33
[PuristS]
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Finally, the Villeret Exotourbillon Chronographe is ready for production

First introduced at SIHH 2010, the Exotourbillon has been in preproduction status for the past six months.

The watchmakers at Minerva have finally solved their engineering problems, completed testing, and now have a reliable working model ready for the retail boutiques.

It really was my favorite piece at the recent Beverly Hills Villeret event.

Its official debut will be in Singapore tomorrow night.  Also on site will be the watchmaker responsible for this remarkable machine.  The mystery and physics of the "Exo tourbillon" will finally be explained!

Stay tuned,

Mike

Montblanc Collection Villeret 1858 - ExoTourbillon Chronographe

Calibre: MB M 16.60

Type of movement         Hand-wound with chronograph, small seconds, second time zone and four-minute tourbillon escapement

Chronograph                 Monopusher mechanism with column-wheel and horizontal coupling

Dimensions                  Diameter 38.4 mm; height 10,34 mm

No. of components        341, including 51 components for the tourbillon cage

No. of bearing jewels     32 (hemispherical, domed, olive-cut)

Power reserve               55 hours

Balance                        Screw balance, Ø 14.5 mm; 59 mgcm2

Frequency                    18'000 semi-oscillations per hour (2.5 hertz)

Tourbillon                      One rotation every four minutes

Balance-spring              With Phillips terminal curve

Plate                            Rhodium-plated nickel silver, circular graining on both sides

Bridges                        Rhodium-plated nickel silver, côtes de Genève

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

Watch displays             The hours in the first and second time zone are shown at the “6,” the minutes are indicated from the center of the dial, continuous seconds on a subdial at the “9,” day/night indicator with 24-hour display between the “4” and the “5”

Chronograph                 Centre seconds, 30 minute counter at 3 o`clock

indicators                    

Features

Case                             Limited editions: 950 platinum and 18 K white or red gold; domed sapphire crystal (forme chevée), transparent pane of sapphire crystal inset into screwed back beneath hinged cover

Dimensions                  Diameter 47 mm; height 16,67 mm

Watertightness             To three bar (30 meters)

Horns                           With patented mechanism to open the hinged cover on the underside

Crown                          With integrated button to operate the chronograph

Pusher                         In the case’s flank at 8 o`clock to adjust the second time zone

Dial                              18 K gold with ruthenium / argenté hand guilloche and Roman numerals; platinum model with mother-of-pearl inlays

Hands                           18 ct gold, chronograph’s elapsed-seconds handmade of PfinodalTM

Wristband                     Hand-sewn alligator-leather pronged buckle made of 18 K red gold, 18 K white gold or 950 platinum

Limited edition              950 platinum, unique piece

                                   18 K white gold and 18 K red gold, limited to 8 pieces each