Finished by son Pierre Le Roy, Sully escapement, calendar.
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“Répétition à ponts, medium size, 19 lignes, pierced arbor, gold case no. 4068, half-quarter repeating, lever escapement,” sold on 16 March 1826 to Monsieur Spies. Monthly calendar and a secret compartment containing the portrait of a young woman.
“Compteur militaire” cylinder escapement 84 divisions
Movement with “à pattes d'ecrevisses” (crab leg) escapement
Chronometer with Robin escapement
“Montre de souscription”.
Escapement “pallet pin weel”
Tide indicator, enamelled dial, cylinder escapement.
Lever escapement and thermal compensation
"Montre simple plate excentrique nouveau calibre 16½ lignes échapt cilindre, cadran émail” sold to Monsieur Benardaky on 01 luglio 1850 at prize of 1200 FF.
Montre simple a deux aguilles a secondes sien 140 boite en or n.2429 envoyé a Melin de Londres en cadeau pour le prix de 1030 FF le 11 mai 1821. (la n.140 Montre simple à secondes, boîte d’or Vendue le 9 frimaire an 5 (29 novembre 1796) à Monsieur Lavillete 576 FF.)
Chronometer with lever escapement.
“Montre de souscription”, sold to Adjutant Gènèral Ricard on 15 December 1813 for 600 F.F. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Dead-beat seconds watch with double-wheel duplex escapement.
Movement with experimental verge-lever escapement.
Decimal watch with calendar and special escapement