Vacheron Constantin SA (French pronunciation: [vaʃəʁɔ̃ kɔ̃stɑ̃tɛ̃]) is a Swiss luxury watch and clock manufacturer founded in 1755.

[1] It employs around 1,200 people worldwide as of 2018, most of whom are based in the company's manufacturing plants in the Canton of Geneva and Vallée de Joux in Switzerland.

402833 (1929), which was owned by King Fuad I of Egypt, ranks as one of the most expensive watches ever sold at auction, fetching US$2.77 million (3,306,250 CHF) in Geneva on April 3, 2005.

[1][15][16] He was a close friend of leading Enlightenment philosophers Jean-Jacques Rousseau and Voltaire due to their common interests in philosophy, science and watchmaking.

The company's motto (which remains today), "Faire mieux si possible, ce qui est toujours possible (Do better if possible and that is always possible)", first appeared in Constantin's letter to Jacques-Barthélémy.

[23] Notably, in the same year, Fabergé's 1887 Third Imperial Egg contained a Vacheron Constantin Lady's watch as the surprise.

For the remarkable achievements of the company, Vacheron & Constantin was awarded a gold medal at the Swiss National Exhibition in Geneva in 1887.

Sheik Ahmed Zaki Yamani, the former Oil Minister of Saudi Arabia and avid watch collector, became the company's majority shareholder, who then folded Vacheron Constantin into his personal portfolio of holdings.

[29] The Vacheron Constantin headquarters building in Geneva was designed by Bernard Tschumi, and has been noted for its architectural significance.

[34] Currently, the company is an active member of the Federation of the Swiss Watch Industry FH, and produces about 20,000 timepieces per year.

In December 2018, World Wide Fund for Nature (WWF) released a report assigning environmental ratings to 15 major watch manufacturers and jewelers in Switzerland.

This marked another notable entry into the integrated steel sports watch market, paired with the established Overseas model.

[55] In 2007, Vacheron Constantin introduced the Métiers d'Art 'Les Masques' collection of timepieces featuring miniature reproductions of primitive art masks.

[59] In 2012, Vacheron Constantin introduced the Métiers d'Art 'Les Univers Infinis' collection of timepieces featuring tessellation, a design of interlocking shapes inspired by the work of the Dutch artist M. C. Escher.

[61] On April 3, 2005, a Tour de I'lle wristwatch fetched a final price of 1.56 million US dollars (1,876,250 CHF) in Antiquorum's Geneva auction.

[47][48] The auctioned piece has a unique black dial.In 2015, during the manufacturer's 260th anniversary, Vacheron Constantin revealed the world's most complicated mechanical watch, named Reference 57260.

402833 (1929), which was tailored for King Fuad I of Egypt, ranks as one of the most expensive watches ever sold at auction, fetching US$2.77 million (3,306,250 CHF) in Geneva on April 3, 2005.