Movement with lever detent escapement invented by Robert Robin
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Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
“Chronometre de poche” with modified Earnshaw detent escapement, sold to Monsieur Hottinguer (banker of the Maison Breguet), on 11 October 1844 for 1,500 FF.
Large display watch with cylinder escapement and dead central seconds.
"Souscription" with auxiliary minutes and seconds
Chronometer with Earnshaw spring detent escapement, spherical balance spring.
Hour and quarter repeater, cylinder escapement, hunting case.
Dual scale thermometer on the Houriet principle
Lever escapement, quarter hour repeater
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
Repetittion a cuvette ruage 4269 en or 742 Gros, vendu au General Moreau le 2 octobre 1810 au prix de 1800 FF
“Montre de souscription” with verge escapement.
Double-dial astronomical watch with cylinder escapement, centre seconds, and equation of time.
Cylinder escapement watch formerly belonging to Louis Bonaparte (1778–1846), brother of Napoleon, King of Holland, and passed down within the Imperial dynasty.
First generation early straight line lever escapement
Sold to Son Excellence M. Achille Fould on 12 November 1860 for 950 FF. Presented to Professor Heinrich Siegel