Duplex double wheel escapement, monthly republican calendar.
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“Montre de souscription”.
Martin-Pouzait 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.”
Movement with particular Pouzait lever escapement, quarter hour repeater
First generation early straight line lever escapement
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
Side lever escapement.
Verge escapement
“Montre de souscription” apocryphal. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Detent Lever escapement invented by Robert Robin. Restored by Breguet.
Chronometer with Robin escapement
Chronometer with patented detent escapement.
Twin barrel chronometer, monthly calendar with ruby lateral lever escapement
Republican calendar with straight lever escapement
Decimal watch with virgule escapement, power reserve, jumping hours and barometer, center seconds n.4737 belonging to Antoine Louis Leon de Saint-Just.