The watchmaker Vacheron Constantin first started as a small shop founded by Jean-Marc Vacheron in 1755. In 1819 the company grew via partnering with Francois Constantin, to become Vacheron et Constantin. The firm is responsible for numerous innovations in the watch industry, winning itself numerous accolades throughout the years. One of their greatest achievements was a pocket watch commissioned by King Farouk of Egypt which was so complex that it took five years to make. They are also responsible for the thinnest watch ever produced, only 1.64 mm deep.