Straight lever escapement, quarter hour repeater
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Cylinder escapement, quarter hour repeater.
Chronometer with Robin escapement
Hour and quarter repeater with double wheel duplex escapement, snap calendar, engraved equation of time
First generation French lever escapement movement
“Montre de souscription” with verge escapement.
Quarter hour repeater with double wheel duplex escapement.
Sully's escapement
Republican and Gregorian calendar, lever escapement by J.M. Pouizait, skeletonized movement.
“Rèpètition à minutes” chronometer with double-wheel duplex escapement, sold to the Spanish Princes in Valençay on 29 May 1809 for the price of 2,400 F.
Robin style movement with cylinder 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.
Dead seconds watch with detent escapement
Seven-day power reserve, cylinder 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.
“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