Vacheron Constantin
The company was founded in 1755 by Jean-Marc Vacheron, an independent watchmaker in Geneva, Switzerland. In 1770, his company created the first complication, and nine years later he designed the first engine-turned dials. … Consequently, in 1819 François Constantin became an associate of Vacheron.
It is among the The Oldest Surviving Watch-Making Brands with an uninterrupted history since 1755.