Collector's Pocket Watches, Wristwatc...
Noga Hilton, Geneva, Apr 12, 2003
Breguet manuscripts:- A large pencil drawing of a Breguet regulator, No. 3593, which was sold to David Magnin, horologist in New York, November 1, 1823.- 6 sheets representing studies for an astronomical clock, with pencil and pen and ink drawings, calculations, and notes concerning the escapement.- The draft of a letter concerning a planétaire which was submitted to his jugement.1 drawing and 7 pages.