Double wheel verge escapement.
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Escapement “pallet pin weel”
Scappamento ad ancora e compensazione termica
"Rèpètition de première Classe sur les Principes des Chronomètres", calendar, ruby lever escapement, hour, quarter and half-quarter repeater, sold to M. le Professeur Shumacher, on 23 February 1829 for 3,200 FF.
Dead seconds watch with duplex lever escapement by Jean Renaud
Weekly winding device, monthly calendar, with comma escapement
Dead seconds watch with detent escapement
Robin style movement with cylinder escapement.
Monthly and weekly calendar, with virgule escapement and “diablotine”
Quarter hour repeater with double wheel duplex escapement.
Dead independent seconds movement, cylinder escapement.
Chronometer with lever escapement.
Hour and quarter repeater, verge escapement, enamelled case.
Orologio a secondi morti con scappamento a virgola
First generation early straight line lever escapement
“Subscription" watch, Cassa di Joly no. 1769, sold to Prince Kurakin on August 9, 1811, for 1,080 FF, returned in 1812 and resold to the Princes of Valencay on May 8, 1812, for 980 FF.”