Hour and quarter repeater, cylinder escapement, enamel case
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Made on the Houriet principle with a special dial
Weekly winding device, monthly calendar, with comma escapement
Quarter hour repeater movement with duplex escapement.
“Resilient lever” lever escapement modified by Mortimer George Cole.
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.
“Montre de souscription”.
Quarter-repeating watch, enamelled case decorated with diamonds and pearls, formerly belonging to Queen Catherine of Württemberg, wife of Jérôme Bonaparte.
Robin's lever detent escapement of special shape
Side lever experimental 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.
Orologio a secondi morti con scappamento a virgola
Finished by son Pierre Le Roy, Sully escapement, calendar.
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
Hour and quarter repeater, mustache lever escapement
Turkish market watch, hour and quarter repeater with ruby cylinder escapement, translucent red enamel case, sold to Leroy in Constantinople for 2,400 FF (Breguet agent).