First generation French lever escapement movement
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Republican calendar with straight lever escapement
Republican and Gregorian calendar, lever escapement by J.M. Pouizait, skeletonized movement.
Dead-beat seconds watch with double-wheel duplex escapement.
Hour and quarter repeater with cylinder escapement.
Verge escapement
Souscription watch
Martin-Pouzait lever escapement
Twin barrel chronometer, monthly calendar with ruby lateral lever escapement
Chronometer with Robin escapement
“Montre de souscription”, sold to Adjutant Gènèral Ricard on 15 December 1813 for 600 F.F. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Hour and quarter repeater with double wheel duplex escapement, snap calendar, engraved equation of time
Straight lever escapement, quarter hour repeater
Finished by son Pierre Le Roy, Sully escapement, calendar.
‘Montre a repetition des quart a toc’ lever escapement, monthly calendar, sold on 09 August 1792 to Monsieur Robert (Anglais) for 1800 francs “Nouveau calibre”.
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.