Vacheron Constantin reinterprets Traditionnelle Chronograph Perpetual Calendar


Vacheron Constantin reinterprets to create Traditionnelle Chronograph Perpetual Calender

September 21, 2016: Watchmaker Vacheron Constantin has revised its iconic model to launch the Traditionnelle Chronograph Perpetual Calendar, equipped with the new Manufacture Vacheron Constantin Caliber 1142 QP.
 
With this new creation appearing in a 950 platinum version, Vacheron Constantin has combined two key complications: the chronograph and the perpetual calendar.

Vacheron Constantin Traditionnelle Chronograph Perpetual Calendar
 
The dial features various shades of grey with finishes that differ according to the functions, reflecting the layout of 1940s Vacheron Constantin chronographs. Standing out against a slate coloured opaline base, the small seconds and chronograph minute counters are distinguished by a circular-brushed ring with snailed centre. The 22K white gold moon disc is hand-finished. Positioned in the centre of the date counter with a dark grey rim, is the symbolic depiction of a moon face that is alternately smiling or melancholy, depending on the path of the Earth’s satellite. 

Caliber 1142 QP, a state-of-the-art movement designed and developed within the Manufacture, drives the perpetual calendar functions – with indications of the date, days, months, leap years and moon phases – as well as the chronograph functions with a direct-drive seconds hands and 30-minute counter at 3 o’clock, positioned opposite the small seconds at 9 o’clock. This newcomer to the Traditionnelle collection will thus be able to keep track of all the vagaries of the calendar without any need for adjustments until March 1st 2100.
 
The oscillation frequency of the balance has also been raised from 2.5 to 3 Hz (21,600 vibrations/hour) so as to increase reliability and shock resistance. The Vacheron Constantin Traditionnelle chronograph perpetual calendar is fitted with a hand-stitched Mississippiensis alligator leather strap secured by a 950 platinum folding clasp.

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