“Montre de souscription” with verge escapement.
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Watch presented by Napoleon Bonaparte to Jean Joseph Gauthier on 21 Floréal Year VII (May 10, 1799), verge escapement
« Simple garde-temps, arbre percé 20 lignes échappement ancre” sold to Monsieur de Bignon 11 March 1858.
Escapement “pallet pin weel”
Virgule escapement
Dead seconds watch with detent escapement
Hour and quarter touch repeater with Debaufre escapement modified by Pierre Le Roy, enamelled case.
Republican and Gregorian calendar, lever escapement by J.M. Pouizait, skeletonized movement.
“Club footed” verge escapement.
Reverse hour-quarter repeater (pull)
“Montre de souscription” with calendar and virgule escapementa
Sold to Son Excellence M. Achille Fould on 12 November 1860 for 950 FF. Presented to Professor Heinrich Siegel
Dead seconds watch with duplex lever escapement by Jean Renaud
Scappamento ad ancora e compensazione termica
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
Cylinder escapement by a pupil of Robin