Lever escapement and thermal compensation
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Monthly and weekly calendar, with virgule escapement and “diablotine”
Dead seconds chronometer with in-line straight lever escapement.
“Montre de souscription”.
Scappamento ad ancora detent di Robin
Straight lever escapement, quarter hour repeater
Quarter repeater in gold and platinum hunting case, sold to Count François Potocki on 15 March 1822, price 2400 FF. Repurchased in 1828 and resold to Madame Dupaty in 1829
Calendar movement with dead seconds and special cylinder escapement.
Straight lever escapement (attributable to Marguerite Dupont who was a watchmaker in Alençon in 1795)
Navigation chronometer with sidereal time indication.
Self-winding hour and quarter repeater with pedometric oscillating mass, cylinder escapement.
Reverse hour-quarter repeater (pull)
Revolutionary and Gregorian calendar, "virgule" escapement.
Hour and quarter repeater, cylinder escapement, hunting case.
Dead seconds watch with lever escapement by Pouzait
Lever escapement, quarter hour repeater