Experimental 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
Self-winding hour and quarter repeater with pedometric oscillating mass, cylinder escapement.
"Repetition demi quart sur timbres” with lever escapement on the “garde temps” principle, hunter case with secret “portrait” compartment, “jumping hours” device sold to Count Panin on 11 June 1821, for FF 4,800, reentered, restored and resold with number 4931 to Monsieur Lacroix of Turin on 16 May 1831 for 4800 francs.
Revolutionary and Gregorian calendar, "virgule" escapement.
Escapement “pallet pin weel”
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
“Double face”, hour and quarter repeater, monthly calendar, centre seconds, early cylinder escapement.
Chronometer with Robin escapement
Decimal watch with virgule escapement, power reserve, jumping hours and barometer, center seconds n.4737 belonging to Antoine Louis Leon de Saint-Just.
Republican calendar with straight lever escapement
Chronometer fitted with a pivoted detent escapement and a balance with three-roller suspension.
Detent Lever escapement invented by Robert Robin. Restored by Breguet.
Lever escapement and thermal compensation
Reverse hour-quarter repeater (pull)
“Compteur militaire” cylinder escapement 84 divisions