Side lever experimental escapement
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Seven-day power reserve, cylinder escapement.
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
“Club footed” verge escapement.
Finished by son Pierre Le Roy, Sully escapement, calendar.
Quarter hour repeater by touch with special cylinder escapement.
Lever escapement, quarter and hour repeater, republican calendar.
Small-sized watch built on the principle of chronometers with monthly calendar, lever escapement sold to Baron Schickler on 30 December 1828 for the price of 3,600 FF.
Automatic winding with beating mass, perpetual monthly and weekly retrograde calendar, cylinder escapement.
Lever escapement and thermal compensation
Dead seconds chronometer with in-line straight lever escapement.
Cylinder escapement
Quarter hour repeater clock watch, verge escapement.
« Simple garde-temps, arbre percé 20 lignes échappement ancre” sold to Monsieur de Bignon 11 March 1858.
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.
“Montre de souscription” with calendar and virgule escapementa