Hour and quarter repeater with cylinder escapement.
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Movement with experimental lateral lever escapement in the Robin style.
Chronometer with pivoted detent escapement sold to M. le General Cafarelli, Prèfet Maritime de Brest le 16 Messidor anno XI (5 July 1803) for 70 Louis.
Hour and quarter repeater, cylinder escapement, hunting case.
Movement with experimental verge-lever escapement.
Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
Finished by son Pierre Le Roy, Sully escapement, calendar.
“Montre de souscription” with verge escapement.
“Montre de souscription” apocryphal. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
“Resilient lever” lever escapement modified by Mortimer George Cole.
Month-day calendar with Poizait lever escapement large central seconds mounted in mahogany case
First generation early straight line lever escapement
Particularly shaped side lever escapement, complete calendere, hour-quarter repeating
Revolutionary and Gregorian calendar, "virgule" escapement.
“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.