Quarter hour repeater by touch with special cylinder escapement.
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Monthly and weekly calendar, with virgule escapement and “diablotine”
Verge escapement
Montre simple medaillon eccentrique 13 lignes ½, cylinder escapement in ruby sold to Lionel Rothschild (banker) on 31 May 1831 for 1,400 FF.
Movement with experimental verge-lever escapement.
Revolutionary with Robin type 2 dial, republican calendar, verge escapement
Lever escapement, quarter and hour repeater, republican calendar.
Hour and quarter repeater and alarm with cylinder escapement.
Quarter and half quarter hour repeater with ruby cylinder escapement no. 255.
“Montre de souscription”, with reverse caliber sold to Monsieur Manu on 1 May 1810 for 600 Francs
Quarter hour repeater clock watch, verge escapement.
Double comma escapement (double virgule)
Small sized watch, cylinder escapement, enamelled case
Finished by son Pierre Le Roy, Sully escapement, calendar.
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
“Montre petit medaillon simple, 13 lignes, pierced arbor, gold case with revolving back, no. 3261, moon phase, lever escapement”. Sold on 02 April 1814 to His Majesty the Emperor of Russia (Alexander I) for the sum of 2,400 francs.