Montblanc Nicolas Rieussec Chronograph with silicon escapement Swiss Watches

On 18th January, 2010 the Swiss watch maker has revealed its new Montblanc Nicolas Rieussec Chronograph (ref. 105920) watch with some parts of its Calibre MB R120 hand-wound movement made of silicon. Among hundreds of ultra-luxury wristwatches that were presented at SIHH 2010 event, this one, perhaps, was among those precious few that offered the most interesting combination of deliberately classic exterior, and their own in-house caliber that now features a deliciously modern twist to it.

Although its explicitly three-dimensional face looks rather busy with moving and static parts, it is still very legible because all elements are placed following the logic of usability.

Montblanc Nicolas Rieussec Chronograph watch with silicon escapement

The chronograph’s visual center is only a couple of millimeters lower than the real center of the dial clearly demonstrating that it is the hour and minute sector that really leads the cast of characters here. In fact, the dial with its tri-compax layout looks like the three sub-dials are in constant motion slowly orbiting their common center of mass.

Of course, what is the most interesting about this watch is its Montblanc Calibre MB R120 manual-wound movement.

Based on the well-known Calibre MB R110 (that, in its own turn, is based on an earlier MB R100: a movement that Montblanc has reportedly developed together with its sister brand ValFleurier that is, too, owned by the same Richemont Group,) this little engine features a deliberately archaic design, yet has its lever and escape-wheel made of silicon. Anti-magnetic, corrosion-resistant and extremely lightweight, this material allowed the watchmakers from the recently established Institut Minerva de Recherche en Haut Horlogerie to lower the parts’ dead weight by about 70 percent, thus reducing energy loss and increasing the watch’s accuracy.

With the frequency of its balance wheel limited at deliberately low 18,000 vph, the twin-barrel mechanism offers surprisingly low power reserve value of just 72 hours. Still, this would be enough for those planning to wear the chronograph on a daily basis. Those who plan to limit its use to only particularly special occasions may find it not as convenient since, sporting a hand-wound system, the watch would have to be manually wound and re-set each time you’d find yourself in a mood of wearing one. For me, this sort of breaks the deal, but for me having a collection of watches was more about spontaneity of choice: I am one of those persons who always waits till the last second before choosing a timekeeper I want to go with today.

Montblanc Nicolas Rieussec Chronograph watch (detail, dial)

The movement is hidden inside an elegant round case 43.0 mm in diameter and 14.6 mm thick. The case, which is predictably crafted from 18-carat rose gold alloy, seems to be a tad too large for what is essentially a glorified dress watch, yet the timekeeper seems to be deliberate in its largeness: after all, its main point is to attract attention to its owner and that it does perfectly.

Priced at $34,000 USD and limited to only 25 units, the timekeeper has a solid, heavy appearance about it making one proud of owning such an exclusive piece of work.

See also: De Bethune DB25 Moon Phase

Photos: Montblanc

Montblanc Nicolas Rieussec Chronograph Silicon Escapement watch (ref. 105920) specification

Price range: $34,800 (MSRP)
Movement: Montblanc Calibre MB R120, hand-wound, 18,000 vph, silicon escapement, twin barrels, Swiss Made
Complications: Chronograph, date, power reserve
Power reserve: 72 hours
Case material: Gold
Bezel material: Gold
Case shape: Round
Transparent case back: Yes, sapphire case back
Case size: 43.00 mm
Case height: 14.60 mm
Dial: White, partly skeletonized, three-dimensional
Numerals: Arabic
Hands: Blue
Strap: Brown leather
Crystal: Sapphire, AR-coated
Water resistance: 30 meters

Previous post:
Montblanc Collection Villeret 1858 Vintage Chronographe

Next post:
Montblanc Metamorphosis Collection Villeret transformer watch