Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton 41 mm 18K White Gold

The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton 41 mm in 18K white gold represents the pinnacle of openworked haute horlogerie — a timepiece where innovation, transparency, and architectural finesse meet in perfect balance.

Through its meticulously skeletonized dial, the inner workings of the Caliber 1120 QPSQ/1 are revealed in full display — a perpetual calendar movement of only 4.05 mm thickness, orchestrating day, date, month, leap year, and moon phase functions with extraordinary precision. Each bridge and component is finely beveled, satin-finished, and NAC-treated for a contrasting grey hue that enhances the technical depth of the open design.

Encased in 18K white gold, the watch’s refined silhouette measures just 8.1 mm thick, maintaining its status as one of the thinnest perpetual calendars ever crafted. The blue-toned flange and moon phase disc add a celestial elegance, harmonizing with the silvery luminosity of the metal case and bracelet.

On the reverse, the 22K gold oscillating weight—engraved with a wind rose—rotates gracefully behind sapphire crystal, symbolizing both the art of motion and the Maison’s spirit of exploration.

With its interchangeable bracelet and strap system, the Overseas Skeleton embodies versatility, precision, and prestige — a mechanical sculpture that celebrates the passage of time in its most refined form.