The Perpetual Calender watch from Vacheron Constantin

The Patrimony Contemporaine Perpetual Calendar houses the legendary Calibre 1120 QP, a mechanical self-winding movement stamped with the prestigious Hallmark of Geneva. This ultra-thin automatic winding perpetual calendar can keep track of all the vagaries of the calendar and requires no correction until March 1, 2100.

Externally, the timepiece boasts classic baton hands that turn above a cambered dial on which the minute track is beaded with gold cabochons. The hour markers are both trapeze and baton-shaped, whilst beneath the opaline silvered dial, the lunar disc presents a golden moon set against a lapis lazuli sky.

The watch’s 41 mm-diameter by 8.9 mm thick 18-carat pink gold case is water-resistant to 30 metres and fitted with a sapphire crystal back revealing the engine inside.

The watch is priced at €49,500 (£44,000).