Ferdinand Berthoud was born in 1727 in Switzerland. When he passed away in 1807, after having lived most of his life in Paris, he left behind a vast body of work in marine chronometers, clocks and watches, tools, scientific measuring instruments, and written publications including dozens of specialized books and treatises encompassing 4,000 pages and 120 engraved plates. The search for precision was his life. But why are we bringing this up now?