Thematic Auction in Geneva:The Evolut...
Hotel Noga Hilton, Geneva, Nov 16, 2002
LOT 293
In-folio document 4 manuscript pages, written by Breguet's son, with corrections and annotations by A-L Breguet, concerning the compteur-encreur or compteur à pointage.
CHF 4,000 - 6,000
EUR 2,600 - 4,000
Sold: CHF 46,000
C. In this note, written around 1820, Breguet father and son clearly explain the differences between their inking chronograph and that of " Monsieur Rieussec ", notably for " the measurement of the speed of race horses ". The two Breguets describe with great precision the many possible developments of their inking chronograph, especially in the field of astronomy, " to measure the passage of a star ".
