Self-winding hour and quarter repeater with pedometric oscillating mass, cylinder escapement.
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Side lever experimental escapement
Dead seconds chronometer with in-line straight lever escapement.
Revolutionary with Robin type 2 dial, republican calendar, verge escapement
"Montre simple plate excentrique nouveau calibre 16½ lignes échapt cilindre, cadran émail” sold to Monsieur Benardaky on 01 luglio 1850 at prize of 1200 FF.
Lever escapement, quarter and hour repeater, republican calendar.
Hour and quarter repeater with double wheel duplex escapement, snap calendar, engraved equation of time
Detent anchor escapement by Robert Robin, quarter hour repeater.
“Montre de souscription” with calendar and virgule escapementa
Built on the principle of “garde temps”, quarter and half quarter hour repeater with double wheel duplex escapement sold to Monsieur Egerston (Egerton) on 17 December 1813 for 3,000 FF .
Thirty-tooth “rack lever” escapement
Escapement “pallet pin weel”
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
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
“Montre de souscription” with double wheel duplex escapement