Swiss watch manufacture Vacheron Constantin unveils two new models of the Traditionnelle World Time in either 18K white or 18K 5N pink gold sublimated by a gold map in the center of their dial. Equipped with the in house developed Calibre 2460 WT featuring patented mechanism, this traveller’s timepiece indicates 37 world’s time zones, including those offset from Universal Coordinated Time (UCT) by a half - or quarter hour.
The Traditionnelle World Time by Vacheron Constantin highlight a complication inextricably bound to the history of the Geneva-based manufacturer: world time. The latter is also interwoven with the theme of travel, since Jean-Marc Vacheron and his successors have constantly circled the globe delivering their exceptional timepieces. A pioneer in the development and production of innovative watches, the Manufacture has displayed the same approach in being resolutely open to the world at large. Created in 1755 in Geneva and able to look back over 260 years of uninterrupted activity, Vacheron Constantin soon began exploring the four corners of the world. It established a presence in the United States in 1832 and in China in 1845 – well before the International Meridian Conference held in Washington in 1884 which divided the world into 24 time zones, taking the Greenwich meridian as the longitude 0 point of reference. This new approach became indispensable in keeping step with the development of international travel and of railways.
In keeping with the same pioneering spirit, and driven by a wish to demonstrate that the multiple time-zone watch could be further perfected, the Maison introduced its first timepieces endowed with an international time mechanism in 1932. This movement was the work of a brilliant Geneva watchmaker, Louis Cottier, who had imagined and developed a mechanical movement indicating the 24 time zones from 1 to 24 by means of a disc rotating around the central dial and the outer bezel bearing the names of the world’s major cities. This first Vacheron Constantin world time “Cottier system” watch enabled simultaneous read-off of the time in 31 cities around the world. It marked the start of a rich and longstanding relationship with the world time complication. In 1936, the Maison presented two new versions of its world time model with a 31-city dial and a 30-city dial. In 1937 and 1938, the Geneva-based Manufacture unveiled six table clocks with a mobile dial featuring 67 locations. From the 1940s onwards, Vacheron Constantin attributed the reference number 4414 to a world time model with a 41-city dial and a day-night division of the mobile 24-hour disc. During the 1940s and 1950s, many famous customers were captivated by this useful and ingenious mechanism, and contributed to spreading the fame of this new complication.
In 1957, Vacheron Constantin wrote a new chapter in its history of world time watches by introducing the first world time wristwatch, reference 6213, ordered by an Egyptian dignitary.
Eager to make a major new contribution to the history of this complication, the Vacheron Constantin master-watchmakers and engineers have launched a mechanical movement capable of indicating not only the full time zones, but also the partial ones, so as to reflect the exact temporal reality in the 37 time zones. A number of countries have indeed adopted a half-hour or quarter-hour difference from UTC, and the Calibre 2460 WT by Vacheron Constantin takes account of these specific characteristics. By way of example, it provides the correct time indication for Caracas, since Venezuela decided in 2007 to switch from a full time zone to a half time zone (GMT – 4:30).
Despite its complex construction principles, the mechanical world time movement is extremely user friendly. The wearer chooses the reference time and places it opposite the black triangle at 6 o’clock. The time in the reference location can then be read off either by the hour hand, or by the 24-hour disc, while the time in the other 36 time zones is simultaneously readable. The cities shown in black represent the full time zones, while the cities in red indicate half-hour or quarter-hour zones.
Traditionnelle World Time
References: 86060/000G-8982 & 86060/000R-8985
Hallmark of Geneva certified timepieces
Calibre 2460 WT
Developed and manufactured by Vacheron Constantin
36.6 mm (11’’’¼) diameter, 7.55 mm thick
Approximately 40 hours of power reserve
4 Hz (28,800 vibrations/hour)
World time indication (37 cities)
18K white gold / 18K 5N pink gold
42.5 mm diameter, 11.62 mm thick
Transparent sapphire crystal caseback
Water-resistance tested at a pressure of 3 bar (approx. 30 meters)
Superposition of 3 dials:
- Gold map with sun-brushed continents & sand-blasted seas. Metal disc with cities names (in black for plain hours and in red for half-hours and quarters)
- Sapphire disc with day-night indication and engraved & inked 24-hour indications (18:30 to 6:30 hours indications highlighted with an anthracite-colored background)
- Metal external ring with painted minute-track and 18K gold hour-markers
Black / brown Mississippiensis alligator leather with alligator leather inner shell, hand-stitched, saddle-finish, large square scales
Clasp: 18K white gold / 18K 5N pink gold folding clasp, Polished half Maltese cross-shaped
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