Caliber 1142 QP
The state-of-the-art 1142 QP movement replaces the 1141 QP and drives the perpetual calendar and moon phase functions, as well as the chronograph function with a direct-drive seconds hand. This caliber is able to keep track of all the vagaries of the calendar without any need for adjustments until March 1st 2100. Watchmakers have also been keenly attentive to the energy constraints relating to the chronograph, in order to minimise their impact on the now 48-hour power reserve. The oscillation frequency of the balance has also been raised so as to increase reliability and shock resistance. This new caliber was developed and designed to meet the stringent Hallmark of Geneva criteria.
Developed and manufactured by Vacheron Constantin
Hours, minutes, small seconds at 9 o'clock, perpetual calendar (day of the week, date, month, leap-year indication), moon phase, column-wheel chronograph (30-minute counter at 3 o'clock)
Elegance and Technical sophistication
The collection's classic design codes are embodied in this classic round stepped case with a distinctive fluted pattern on the back, as well as the dauphine-style hands and the railway-type minute track. The tachymetric scale surrounding the dial accentuates the technical nature of the Traditionnelle watch. Its new calibre is visible through a transparent sapphire crystal caseback.
Excellent dial legibility
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 silvered opaline base, the small seconds and chronograph minutes counters are distinguished by a circular-brushed ring with a snailed centre.
Tradition and expertise
The moon phase disc is hand-finished, in keeping with the fine tradition of artistic crafts cultivated by Vacheron Constantin. In a nod to historical watches, it symbolically depicts the moon as an alternately smiling or melancholic face, depending on the path of the Earth's satellite.
Traditionnelle chronograph perpetual calendar
Hallmark of Geneva certified watch
- Case18K 5N pink gold
43 mm diameter, 12.94 mm thick
Transparent sapphire crystal caseback
- DialSilvered, 22K 4N pink gold moon disc
Black painted tachymeter scale
18K 5N pink gold hour-markers
- Strap/braceletBrown Mississippiensis alligator leather with alligator inner shell, large square scales
- Buckle/clasp18K 5N pink gold folding clasp
Polished half Maltese cross-shaped
Caliber 1142 QP
- MovementMechanical manual-winding
- Diameter27.5 (12’’’)
- Power reserveApproximately 48 hours
- Number of components324
- Number of jewels21
Copernicus celestial spheres 2460 RT
Our astronomical watches
From the 19th century to the present day, the history of astronomical complications at Vacheron Constantin has been punctuated by a longstanding tradition of horological expertise.
Discover the entire range of astronomical watches in the various collections of the Manufacture.