The new mechanical self-winding movement, elaborated and manufactured by the Manufacture, allows the watch to indicate the 37 time-zones of the world, among which there are the time-zones offset from Universal Coordinated Time (UCT) by a half - or quarter-hour. The exclusive mechanism was patented by the brand.
The Vacheron Constantin specialists wanted to develop a mechanical movement that would allow the timepiece feature the time not only in the full time zones, but also the partial ones, keeping the watch’s owner aware of the exact temporal reality in the 37 time zones. It should be mentioned that there are countries that adopted a half-hour or quarter-hour difference from UTC. The new Vacheron Constantin movement takes account of this difference.
- a sapphire dial with an original day/night shading,
- a metal dial with a “Lambert projector” type map,
- a metal chapter ring.
The mechanical self-winding 27-jewel movement, operating at a frequency of 28,800 vibrations per hour, provides a 40-hour power reserve. It animates the hours, minutes, central seconds and World Time. The watch owner will be able to read off the time in all regions of the world and see the day/night indication with help of the central world map. The crown is to be used to adjusting all the indications, so it is quite easy to use the complicated timepiece.
The creators of the new World Time movement managed to make it extremely user-friendly. The watch wearer selects the reference time and places it opposite the black triangle found at 6 o’clock. Then, he can read off the time in the reference location either by the hour hand, or by the 24-hour disc. He can also read off the time in other 36 time zones. The cities with full time zones are written in black, while the cities with half-hour or quarter-hour zones are in red.
The 42.5 mm case of the new Vacheron Constantin watch is sculptured in 18K pink gold. The face of the watch is framed by a slender bezel. The screw-down sapphire crystal case-back is decorated with a knurled motif. The timepiece is 30-meter water-resistant.
The Vacheron Constantin Patrimony Traditionnelle World Time watch is secured to the wrist on a brown alligator leather strap fitted with a pink gold folding clasp.