Chronometer with Robin escapement
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“Montre de souscription” with double wheel duplex escapement
Scappamento ad ancora e compensazione termica
“Resilient lever” lever escapement modified by Mortimer George Cole.
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
Cylinder escapement.
Chronometer with Earnshaw spring detent escapement, spherical balance spring.
Double wheel verge escapement.
“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.
Small-sized watch built on the principle of chronometers with monthly calendar, lever escapement sold to Baron Schickler on 30 December 1828 for the price of 3,600 FF.
Republican calendar with straight lever escapement
“Montre simple” in the style of Breguet.
Decimal watch with calendar and special escapement
Cylinder escapement watch formerly belonging to Louis Bonaparte (1778–1846), brother of Napoleon, King of Holland, and passed down within the Imperial dynasty.
Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.