Which Swiss luxury watch brand was founded in Geneva in 1755 by Jean-Marc Vacheron?

Vacheron Constantin is the Swiss luxury watch brand founded in Geneva in 1755 by Jean-Marc Vacheron.

The company began as a small Geneva workshop and later became known for highly complicated mechanical watches, hand finishing and traditional Geneva craftsmanship. In 1819, François Constantin joined the business, producing the name Vacheron & Constantin; the modern form, Vacheron Constantin, was adopted later.

The brand is often described as the world's oldest continuously operating watch manufacturer, although wording varies because some older firms experienced interruptions or changed ownership. It is part of the Richemont group and remains associated with high-end Swiss watchmaking.

A related milestone is the Reference 57260, presented in 2015 as an exceptionally complicated mechanical watch. That achievement reflects the same long tradition that began with Vacheron's 1755 Geneva workshop.