Small sized watch, cylinder escapement, enamelled case
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“Montre de souscription”.
Chronometer with Robin escapement
Detent anchor escapement by Robert Robin, quarter hour repeater.
Finished by son Pierre Le Roy, Sully escapement, calendar.
Movement with experimental verge-lever escapement.
“Repètition dix minutes aux deux styles à volontè a heur sautants” with ruby cylinder escapement and parachute, sent “au freres Chaudoir”, 29 Pluviose an 10 (18 February 1802), revised at the request of Monsieur Mazeau in 1828.
Robin's lever detent escapement of special shape
Navigation chronometer with sidereal time indication.
Dead independent seconds movement, cylinder escapement.
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
Repetition garde temps jumping hour, sold to M. Malotaky, second interpreter of the Turkish Ambassador, Prairial year 6 (May-June 1798), for 1,200 FF.
Straight lever escapement, quarter hour repeater
Weekly winding device, monthly calendar, with comma escapement
Month-day calendar with Poizait lever escapement large central seconds mounted in mahogany case
Chronometer with lever escapement.