Vacheron Constantin Overseas perpetual calendar ultra-thin

Vacheron Constantin's Overseas perpetual calendar ultra-thin, reference 4300V/220G-H151, measures 41.5 mm across in white gold. The case is a slim 8.1 mm thick, a proportion notable given the complication it houses. Under the sapphire crystal sits a burgundy dial with luminous hands and indices. The self-winding calibre 1120 QP/1 carries the Hallmark of Geneva and drives a full perpetual calendar, showing date, weekday and month alongside a moon phase display. It has a 40-hour power reserve. A sapphire caseback exposes the movement's finishing. The white gold bracelet closes with a folding clasp, also in white gold, and the whole package carries a 50 metre water resistance rating.