Cylinder escapement, quarter hour repeater.
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Cylinder escapement watch formerly belonging to Louis Bonaparte (1778–1846), brother of Napoleon, King of Holland, and passed down within the Imperial dynasty.
“Montre de souscription” case n.918 sold au freres Chaudoir 20 Nivose an 13 (10 Janvier 1805)
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.
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
Hour and quarter repeater, mustache lever escapement
“Montre de souscription”, with reverse caliber sold to Monsieur Manu on 1 May 1810 for 600 Francs
Quarter repeater in gold and platinum hunting case, sold to Count François Potocki on 15 March 1822, price 2400 FF. Repurchased in 1828 and resold to Madame Dupaty in 1829
Turkish market watch, hour and quarter repeater with ruby cylinder escapement, translucent red enamel case, sold to Leroy in Constantinople for 2,400 FF (Breguet agent).
“Resilient lever” lever escapement modified by Mortimer George Cole.
Quarter-repeating watch, enamelled case decorated with diamonds and pearls, formerly belonging to Queen Catherine of Württemberg, wife of Jérôme Bonaparte.
Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
Hour and quarter repeater and alarm with cylinder escapement.
Movement with particular Pouzait lever escapement, quarter hour repeater
Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.