Chronometer with patented detent escapement.
Log in or register.
“Montre de souscription” case n.918 sold au freres Chaudoir 20 Nivose an 13 (10 Janvier 1805)
Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
Large display watch with cylinder escapement and dead central seconds.
Quarter hour repeater with double wheel duplex escapement.
Side lever experimental escapement
“Simple gold watch with grandes secondes d’un coup” sold on 1 March 1860 to Monsieur Mathias for 655 francs, returned by the same on 8 March 1866, resold to Monsieur Henry Mallet for 875 francs to be presented to Doctor Lienard, double barrel, independent seconds, lever escapement.
“Montre petit medaillon simple, 13 lignes, pierced arbor, gold case with revolving back, no. 3261, moon phase, lever escapement”. Sold on 02 April 1814 to His Majesty the Emperor of Russia (Alexander I) for the sum of 2,400 francs.
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
Dual scale thermometer on the Houriet principle
Sully's escapement
Martin-Pouzait lever escapement
"Rèpètition de première Classe sur les Principes des Chronomètres", calendar, ruby lever escapement, hour, quarter and half-quarter repeater, sold to M. le Professeur Shumacher, on 23 February 1829 for 3,200 FF.
Decimal watch with double time indication on a 24-hour basis, verge escapement.
Chronometer made by Joseph Thaddeus Winnerl on a movement by Robert Robin
Quarter andhour repeater, jumping hours device with experimental ruby verge escapement.