Lever escapement, quarter and hour repeater, republican calendar.
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Elève de Winnerl, chronometer with lever escapement.
“Resilient lever” lever escapement modified by Mortimer George Cole.
Martin-Pouzait lever escapement
Side lever experimental escapement
Dead-beat seconds watch with double-wheel duplex escapement.
Cylinder escapement, quarter hour repeater.
Hour and quarter repeater, verge escapement, enamelled case.
Finished by son Pierre Le Roy, Sully escapement, calendar.
Chronometer with Earnshaw spring detent escapement, spherical balance spring.
Chronometer with Robin escapement
Monthly and weekly calendar, with virgule escapement and “diablotine”
Quarter hour repeater, grand sonnerie clock watch, Robin detent lever escapement
‘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”.
Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
“Chronometre de poche” with modified Earnshaw detent escapement, sold to Monsieur Hottinguer (banker of the Maison Breguet), on 11 October 1844 for 1,500 FF.