Calendar movement with dead seconds and special cylinder escapement.
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Hour and quarter repeater with double wheel duplex escapement, snap calendar, engraved equation of time
Month-day calendar with Poizait lever escapement large central seconds mounted in mahogany case
Quarter hour repeater clock watch, verge escapement.
Navigation chronometer with sidereal time indication.
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
“Répétition des quarts à ponts moyenne, 15 lignes, boîte or n. 3510, échappement à cylindre”. Sold on 05 November 1817 to Madame Soehnée. Monthly calendar and secret compartment containing a lock of hair.
Sully's escapement
Chronometer with lever escapement.
Independent seconds movement, lateral lever escapement.
“Montre simple” in the style of Breguet.
Chronometer with pivoted detent escapement sold to M. le General Cafarelli, Prèfet Maritime de Brest le 16 Messidor anno XI (5 July 1803) for 70 Louis.
Orologio a secondi morti con scappamento a virgola
Finished by son Pierre Le Roy, Sully escapement, calendar.
Lever escapement and thermal compensation
Chronometer fitted with a pivoted detent escapement and a balance with three-roller suspension.