Nicolas Rieussec’s first patented chronograph from 1821 inspired the watchmakers at Montblanc to create the Nicolas Rieussec watch collection with manufacture movements and distinctive styling. The timepiece’s unmistakable appearance combines an off-centre hour-circle in the upper part of the dial and the chronograph’s elapsed-time displays in the lower portion of the face. As on the original from 1821, elapsed time is shown on two rotating discs, above each of which a motionless hand indicates the passing seconds and minutes.

Nicolas Mathieu Rieussec

Nicolas Rieussec, watchmaker to the French royal court, invented this construction to precisely measure the running times of individual horses at a horserace. When the starting gun was fired at the track, the patented “ink chronograph” was set in motion so that two white enamelled discs began to turn: one disc was calibrated for 60 elapsed seconds, the other for 30 elapsed minutes.
The user pressed a button each time a horse crossed the finish line: this pressure momentarily lowered an elongated rhombic carrier with two ink-filled tips onto the enamel discs, where each tip left a droplet of ink. These inky markings on the scales of the chronograph’s discs enabled the user to read the exact running time of each horse. Rieussec’s device was literally a “time writer,” so he accordingly named it a “chronograph” from the Greek words “chronos” (time) and “graphein” (to write). In 1822, the Académie des Sciences in Paris granted a patent on this device to Nicolas Rieussec, who went down in horological history as the inventor of the world’s first patented chronograph.

“Homage to Nicolas Rieussec” Chronograph by Montblanc

In 2014, Montblanc pays tribute to this great clockmaker with a new interpretation of his chronograph from 1821. The Montblanc “Homage to Nicolas Rieussec” chronograph faithfully replicates every detail of the colour scheme and the styling of the hands as they appeared on the original “time writer”, but relies on innovative materials and technologies to transport the historical device into our contemporary day and age. The new “Homage to Nicolas Rieussec” chronograph from the Montblanc Nicolas Rieussec collection shows the date, indicates the time in two different time zones and also offers a day/night display. The timepiece will be manufactured in limited editions in rose gold and steel.

A monopusher chronograph with a manufacture calibre

Combining traditional watchmaker’s craftsmanship and modern engineering artistry, self-winding mechanical manufacture Calibre MB R200 ticks unseen beneath the innovative dial. A laboriously milled column-wheel controls the monopusher chronograph; the connection between the gear-train and chronograph’s wheels is alternately engaged and disengaged by a vertical coupling, which functions nearly without wear and prevents the elapsed-time hands from jumping when the chronograph is switched on.
The double barrel stores enough power for 72 hours of continuous running. The movement’s appeal derives not only from its outstanding mechanical performance, but also from its horological aesthetic. The components are decorated with Geneva waves and have beveled, polished edges. Bright red jewels, blued screws and shiny golden brass wheels complete the handsome ensemble, which can be admired by peering through the transparent pane of sapphire crystal in the back of the case.

Traditional features – innovative styling

The hour-circle reveals its special feature in the dark, when an unprecedented technique causes the formerly hidden hour numerals to appear on the dial. The traditionally styled hour-circle is crafted from ultramodern hybrid ceramic permeated with Superluminova pigments. These luminous pigments form the Arabic hour numerals in the characteristic font of the Montblanc Rieussec collection. The digits are invisible in daylight because they’re precisely embedded into the hour ring, with which they share exactly the same colour.

Luminous pigments form the Arabic hour numerals in the characteristic font of the Montblanc Rieussec collection

But when the ambient light starts to dim, the luminous pigments that fill the numerals – as well as the Superluminova-filled hour-hand and minute-hand – begin to glow, thus assuring perfect legibility and simultaneously giving this watch its characteristic appearance.

Source: Image.Net for Montblanc
Video: Montblanc Channel on YouTube