Cylinder escapement, quarter hour repeater.
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Double comma escapement (double virgule)
"Rèpètition de première Classe sur les Principes des Chronomètres", calendar, ruby lever escapement, hour, quarter and half-quarter repeater, sold to M. le Professeur Shumacher, on 23 February 1829 for 3,200 FF.
“Montre de souscription” case n.307 « Remise a son excellence l'Ambassadeur de Espagne pou faire passer a Monsieur X » 5 Terminador an 9 (24 Jullet 1801)
Lateral lever escapement, quarter hour repeater.
“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.
“Montre de souscription” with double wheel duplex escapement
Detent anchor escapement by Robert Robin, quarter hour repeater.
Elève de Winnerl, chronometer with lever escapement.
Republican calendar with straight lever escapement
Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.
Movement with experimental lateral lever escapement in the Robin style.
Built on the principle of “garde temps”, quarter and half quarter hour repeater with double wheel duplex escapement sold to Monsieur Egerston (Egerton) on 17 December 1813 for 3,000 FF .
Month-day calendar with Poizait lever escapement large central seconds mounted in mahogany case
Virgule escapement
Lever escapement, quarter and hour repeater, republican calendar.