Vacheron Constantin 2460 WT

World Time automatic movement capable of indicating not only the full time zones, but also partial ones, reflecting the exact temporal reality in 37 time zones. A number of countries have adopted half-hour or quarter-hour differences from UTC, and Calibre 2460WT takes account of these specific characteristics. The display consists of three dials: a sapphire dial with day/night shading, a metal dial with a Lambert projector type world map, and a metal chapter ring. All indications are adjusted via the crown, simplifying operation. A patent has been filed for this exclusive development. Hallmark of Geneva certified.