Duplex double wheel escapement, monthly republican calendar.
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“Rèpètition de Première Classe” con scappamento a cilindro in rubino, e jumping hour venduto a monsieur Ternaux (Étienne Nicolas Louis Ternaux ) , il 2 Brumaio anno 13 (24 ottobre 1804) per 1.800 FF.
Movement with experimental verge-lever escapement.
Martin-Pouzait lever escapement
Scappamento ad ancora e compensazione termica
Detent Lever escapement invented by Robert Robin. Restored by Breguet.
Alarm with verge escapement
“Montre de souscription”.
Chronometer made by Joseph Thaddeus Winnerl on a movement by Robert Robin
“Rèpètition de Première Classe” with ruby cylinder escapement, sold to an anonymous “monsieur” on 13 July 1811 for 1,728 FF, resold to Monsieur Gozzel on 22 May 1822 for 900 FF.
"Montre simple” N.3707 sold to Monsieur Furchy Notaire on 31 June 1822 for 1140 FF.
Josiah Emery Straight Lever Escapement Chronometer.
Escapement “pallet pin weel”
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
Experimental verge escapement
First generation early straight line lever escapement