Central seconds, regulateur dial, cylinder escapement
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Double-dial astronomical watch with cylinder escapement, centre seconds, and equation of time.
Scappamento ad ancora e compensazione termica
Side lever escapement.
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.
Detent Lever escapement invented by Robert Robin. Restored by Breguet.
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
Made on the Houriet principle with a special dial
Chronometer fitted with a pivoted detent escapement and a balance with three-roller suspension.
“Repètition dix minutes aux deux styles à volontè a heur sautants” with ruby cylinder escapement and parachute, sent “au freres Chaudoir”, 29 Pluviose an 10 (18 February 1802), revised at the request of Monsieur Mazeau in 1828.
Quarter andhour repeater, jumping hours device with experimental ruby verge escapement.
“Montre de souscription” with calendar and virgule escapementa
“Montre de souscription a tact” sold to the brother of the Spanish Consul (Monsieur de la Serna) in Vendemiaire year X (1802) for 1,100 FF.
“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.”
Quarter hour repeater with double wheel duplex escapement.
Skelectric watch with Masonic decoration.