“Montre de souscription” with calendar and virgule escapementa
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Quarter andhour repeater, jumping hours device with experimental ruby verge escapement.
Cylinder escapement watch formerly belonging to Louis Bonaparte (1778–1846), brother of Napoleon, King of Holland, and passed down within the Imperial dynasty.
Hour and quarter touch repeater with Debaufre escapement modified by Pierre Le Roy, enamelled case.
Hour and quarter repeater with cylinder escapement.
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
Large display watch with cylinder escapement and dead central seconds.
Dead independent seconds movement, cylinder escapement.
Lever escapement, quarter hour repeater
First generation early straight line lever escapement
Escapement “pallet pin weel”
Souscription watch
Decimal watch with calendar and special escapement
Garde temps, rèpètition de première Classe sur les princes des chronomètre” sold to Count Mercy d’Argenteau on 28 January 1824 for 3,400 FF. Repetition of hours, quarters and half quarters, monthly calendar. Jumping hour.
“In homage to A.L. Breguet”, chronometer with thermometer, weekly calendar and power reserve.
Revolutionary and Gregorian calendar, "virgule" escapement.