Image Not Available
Ferdinand Berthoud
1727 - 1807
Ferdinand Berthoud, (born March 19, 1727, Plancemont, Switz.—died June 20, 1807, Groslay, France), horologist and author of extensive treatises on timekeeping.
"Ferdinand Berthoud," Encyclopaedia Britannica. Encyclopaedia Britannica Online Academic Edition, http://www.britannica.com/EBchecked/topic/62820/Ferdinand-Berthoud (accessed 08/26/2014)