Straight lever escapement, quarter hour repeater
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Hour and quarter repeater with verge escapement
Dual scale thermometer on the Houriet principle
"Souscription" with auxiliary minutes and seconds
Cylinder escapement
“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.
Hour and quarter repeater, cylinder escapement, enamel case
“Montre de souscription”.
First generation French lever escapement movement
« Simple garde-temps, arbre percé 20 lignes échappement ancre” sold to Monsieur de Bignon 11 March 1858.
“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.”
Garde temps chronometer with going barrel started in 1823 and completed in 1857 sold to an unknown customer
Decimal watch with double time indication on a 24-hour basis, verge escapement.
Double comma escapement (double virgule)
Ruby lever escapement.
Chronometer with Earnshaw spring detent escapement, spherical balance spring.