Ruby lever escapement.
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Month-day calendar with Poizait lever escapement large central seconds mounted in mahogany case
Cylinder escapement watch formerly belonging to Louis Bonaparte (1778–1846), brother of Napoleon, King of Holland, and passed down within the Imperial dynasty.
“Montre de souscription” case n.307 « Remise a son excellence l'Ambassadeur de Espagne pou faire passer a Monsieur X » 5 Terminador an 9 (24 Jullet 1801)
Montre simple medaillon eccentrique 13 lignes ½, cylinder escapement in ruby sold to Lionel Rothschild (banker) on 31 May 1831 for 1,400 FF.
"Souscription" with auxiliary minutes and seconds
Monthly and weekly calendar, with virgule escapement and “diablotine”
Movement with experimental verge-lever escapement.
Weekly winding device, monthly calendar, with comma escapement
Double-dial astronomical watch with cylinder escapement, centre seconds, and equation of time.
Side lever experimental escapement
Quarter hour repeater, grand sonnerie clock watch, Robin detent lever escapement
“Subscription" watch, Cassa di Joly no. 1769, sold to Prince Kurakin on August 9, 1811, for 1,080 FF, returned in 1812 and resold to the Princes of Valencay on May 8, 1812, for 980 FF.”
Large display watch with cylinder escapement and dead central seconds.
“Montre de souscription” apocryphal. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Hour and quarter repeater, mustache lever escapement