Chronometer with Earnshaw spring detent escapement, spherical balance spring.
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Experimental verge escapement
Chronometer with Robin escapement
Anonymous watch with central and auxiliary dead seconds, chicane lever escapement
Alarm with 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.
Navigation chronometer with sidereal time indication.
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
Month-day calendar with Poizait lever escapement large central seconds mounted in mahogany case
Dead-beat seconds watch with double-wheel duplex escapement.
“Montre de souscription”.
Calendar movement with dead seconds and special cylinder escapement.
“Montre de souscription” with double wheel duplex escapement. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Lever escapement and thermal compensation
"Montre a repetition des quart a toc" Robin-style anchor escapement, sold on 28 June 1793 to Monsieur Fabre Loncle.
Virgule escapement