Thematic Auction in Geneva:The Evolut...
Hotel Noga Hilton, Geneva, Nov 16, 2002
LOT 300
Exceptional in-folio document, 4 manuscript pages entirely in the hand of Abraham-Louis Breguet.
CHF 15,000 - 18,000
EUR 10,000 - 12,000
Sold: CHF 190,500
C. This note, written circa 1801, exposes the 5 major points on which Breguet concentrated his research:-The constant force escapement (patented in 1798)-The tourbillon regulator (patented in 1801)-The suspension of the regulator-The balance spring-The pendulum
Notes
This fascinating text demonstrates the logical thinking and enthusiasm of Breguet, who, shortly after the Revolution, and after having registered two patents, is already eager that his work be understood in its entirety.