Early Life and Career Born: March 18, 1727, in Plancemont-sur-Couvet, Principality of Neuchâtel (now part of Switzerland) Died: June 20, 1807, in Groslay, Val d'Oise, France Ferdinand Berthoud was born into a family of watchmakers, fostering an early interest in horology. He began his apprenticeship at a young age and demonstrated exceptional skill. In 1753, he became a master watchmaker in Paris, marking the beginning of hi…