Montblanc Nicolas Rieussec Rising Hours

By: Editor In Chief
    
Fri 9 January,2015

Montblanc Nicolas Rieussec Rising Hours




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Montblanc Nicolas Rieussec Rising Hours

The hour display of this watch is made possible by Montblanc'€™s new Calibre MB R220, which has a patented mechanism consisting of two rotating discs positioned one atop the other, to show not only the individual 12 hours, but to also indicate whether its day or night. The Arabic numerals 1 to 12 are on the upper disc, which is situated above the bi-color day/night disc. The 12-hour disc rotates continually, while the day/night disc turns in intervals and at variable speeds to produce the desired color change (blue for the night, black for the day) in the cut-out numerals. This motion is controlled with the aid of a Maltese cross-shaped mechanism consisting of two cam-like wheels. In addition to this double-disc mechanism, four other disc displays rotate. The day of the week is shown in a window at the 9 o'clock€ and the date appears in an aperture at the 3 o'clock This is the latest version of the collection named after the inventor of the chronograph.




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