Chronographe ExoTourbillonThe new ExoTourbillon Chronographe is a regulator watch with a large centrally axial minute-hand, a distinct hour display, an indicator for the time in a second time zone (with day/night display), a subdial for the seconds, a chronograph with a counter for 30 elapsed minutes, and an absolutely unprecedented tourbillon with a balance larger than the tourbillon’s rotating cage and positioned outside it.
This clever mechanism underwent further optimization for the ExoTourbillon Chronographe: the balance has been separated from the cage to isolate it from the disturbing movements of the escapement.
This separation made it possible to create the world’s first tourbillon in which the rotating cage is smaller than the balance, which oscillates outside the cage and on a higher plane. This architecture also inspired the watch’s name, which includes the Greek prefix exo, meaning outside.
The balance in this unconventional configuration is borne between two jewels - it is neither cantilevered (“flying”) nor is it borne between two bridges - while the tourbillon turns at the foot of the axis in a two-point bearing.
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158,88 KBChronographe VintageWith its unmistakable dial, which emphasizes finely calibrated scales, the Vintage Chronographe is a superlative device for the measurement of brief intervals of time.
Only the most powerful innovations of the past can become the traditions of today – and are awarded the appellation “vintage”.
The same applies to this new chronograph in the Montblanc Collection Villeret 1858, which boasts a spirally shaped tachymeter scale in the center of its dial.
A coiled scale of this kind was a typical and frequent feature on the legendary Minerva chronographs from the 1910s and 1930s.
The periphery of the Vintage’s dial was reserved for the telemeter scale, so the tachymeter scale was shifted into the center, where it was coiled like a snail’s shell so that it would be long enough to be used for tachymeter measurements up to three minutes in duration.
The quiet ticking beneath this noble dial hints at the presence of the legendary MBM Calibre 16.29, a movement which is endowed with all the characteristics that raise the pulse rater of watch lovers: a large and weighty balance, with adjustment screws along its rim, oscillates at a pace of 18,000 A/h (2.5 hertz); a balance-spring with a Philips terminal curve; a swan’s neck fine adjustment mechanism; a V-shaped chronograph-bridge; a meticulously and manually beveled and finely finished chronograph-lever; classical horizontal coupling; and a column-wheel to control the chronograph’s functions.
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185,21 KBMetamorphosis de MontblancPrior to its metamorphosis, the beholder sees a large and teardrop-shaped case with a dial that offers an unusual display of the ordinary time of day, also known as “civil time.”
A regulator-style subdial with a lone hour-hand and a wreath of Roman numerals occupies the “12 o’clock” position, while a retrograde minute-hand sweeps its arc between the “8” and the “4” from the center of the main dial.
A large seconds-hand, which shares this same central axis, completes one full circle per minute. A hand-type date display is located at 6 o`clock.
The aforementioned hands combine to indicate the current civil time and the date. But as soon as an interested watch aficionado pulls the slide on the left-hand flank of the case downward from the “10” to the “8,” this extraordinary timepiece begins a metamorphosis which transforms it into a chronograph within approximately fifteen seconds.
As occurs between two consecutive scenes on a theater’s stage, here too on this watch’s dial an impressively quick change ensues during the metamorphosis.
Four wings in the lower half of the face open, slide under one another, and finally disappear to the left and right beneath the dial’s middle bar. A similar sequence transpires with two wings on the regulator’s hour dial at the “12.”
After all the wings have opened, a subdial rises like the floor of an elevator at the 6 o`clock position, an aperture in this rising disk “swallows” the date-hand. The newly risen rotating disc is the minute counter of the chronograph.
After its metamorphosis, this masterpiece of mechanical timekeeping presents a countenance devoted entirely to the chronograph function.
The face for displaying civil time had a rather conservatively elegant appearance with Roman numerals and a classical black-and-silver color scheme; but after transformation, the chronograph’s dial relies on Arabic numbers and red accents to emphasize the sportily technical aspect of an instrument that’s built to tally short intervals of time.
The hours are shown on a subdial at 12 o`clock such as before and the retrograde minutes are still shown from the centre.
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148,88 KBMontblanc Nicolas Rieussec Chronographe Silicon EscapementModern measurement of brief intervals of time had already celebrated a comeback with the debut of the Montblanc Nicolas Rieussec Chronograph in 2008.
Two years later, the brand’s developers again outdo themselves by presenting a new limited-edition model encasing a movement in which the lever and escape-wheel are made of silicon, a material that embodies state-of-the-art horological artistry.
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