Decimal watch with double time indication on a 24-hour basis, verge escapement.
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Escapement “pallet pin weel”
Dead seconds watch with detent escapement
Dual scale thermometer on the Houriet principle
“Montre de souscription” case n.918 sold au freres Chaudoir 20 Nivose an 13 (10 Janvier 1805)
Hour and quarter repeater, cylinder escapement, enamel case
Republican and Gregorian calendar, lever escapement by J.M. Pouizait, skeletonized movement.
Movement with experimental lateral lever escapement in the Robin style.
Navigation chronometer with sidereal time indication.
‘Montre a repetition des quart a toc’ lever escapement, monthly calendar, sold on 09 August 1792 to Monsieur Robert (Anglais) for 1800 francs “Nouveau calibre”.
Souscription watch
Decimal watch with double time indication on a 24-hour basis, verge escapement, enamelled case
Dead central seconds watch with star duplex escapement invented by Charles Edouard Jacot with 1/4 second diablotine
Virgule escapement
Weekly winding device, monthly calendar, with comma escapement