Cylinder escapement
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“Montre simple” in the style of Breguet.
“Montre de souscription” with calendar and virgule escapementa
“Montre de souscription” with verge escapement.
Lever escapement, quarter hour repeater
Montre simple medaillon eccentrique 13 lignes ½, cylinder escapement in ruby sold to Lionel Rothschild (banker) on 31 May 1831 for 1,400 FF.
Scappamento ad ancora detent di Robin
Watch for the Turkish market, quarter-hour repeater with ruby cylinder escapement, shipped to the Maison de Russie on 23 April 1810 and sold by Moreau on 31 December 1810 for FF 1,680.
Hour and quarter repeater with verge escapement
Repetittion a cuvette ruage 4269 en or 742 Gros, vendu au General Moreau le 2 octobre 1810 au prix de 1800 FF
First generation French lever escapement movement
Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
Hour and quarter repeater, verge escapement, enamelled case.
Finished by son Pierre Le Roy, Sully escapement, calendar.
Tourbillon with rotation per minute
Dead seconds chronometer with in-line straight lever escapement.