Early lever escapement.
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Montre simple medaillon eccentrique 13 lignes ½, cylinder escapement in ruby sold to Lionel Rothschild (banker) on 31 May 1831 for 1,400 FF.
‘Montre a repetition des quart a toc’ lever escapement, monthly calendar, sold on 09 August 1792 to Monsieur Robert (Anglais) for 1800 francs “Nouveau calibre”.
Built on the principle of “garde temps”, quarter and half quarter hour repeater with double wheel duplex escapement sold to Monsieur Egerston (Egerton) on 17 December 1813 for 3,000 FF .
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
Decimal watch with calendar and special escapement
Quarter hour repeater clock watch, verge escapement.
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
Garde temps with detent pivotè escapement, sold to Prince Sergey Sergeevich Gagarine, 1 May 1810 for 1,200 FF, as recorded in Moreau's archives.
“Rèpètition des quart a toc” with ruby cylinder escapement, “jumping hour” device sold to monsieur Frederic Frackmann (Breguet’s correspondent in Moscow) on 15 Germinal anno 12 (5 May 1804) for the price of 1500 FF.
Hour and quarter repeater with verge escapement
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.
“Rèpètition de Première Classe” with ruby cylinder escapement, sold to an anonymous “monsieur” on 13 July 1811 for 1,728 FF, resold to Monsieur Gozzel on 22 May 1822 for 900 FF.
"Souscription" with auxiliary minutes and seconds
First generation early straight line lever escapement
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.