Quarter hour repeater clock watch, verge escapement.
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Movement with experimental lateral lever escapement in the Robin style.
"Montre simple plate excentrique nouveau calibre 16½ lignes échapt cilindre, cadran émail” sold to Monsieur Benardaky on 01 luglio 1850 at prize of 1200 FF.
Dead independent seconds movement, cylinder escapement.
“Montre de souscription”, with reverse caliber sold to Monsieur Manu on 1 May 1810 for 600 Francs
“Compteur militaire” cylinder escapement 84 divisions
Navigation chronometer with sidereal time indication.
Dead seconds chronometer with in-line straight lever escapement.
« Simple garde-temps, arbre percé 20 lignes échappement ancre” sold to Monsieur de Bignon 11 March 1858.
“Double face”, hour and quarter repeater, monthly calendar, centre seconds, early cylinder escapement.
“Rèpètition à minutes” chronometer with double-wheel duplex escapement, sold to the Spanish Princes in Valençay on 29 May 1809 for the price of 2,400 F.
First generation early straight line lever escapement
Hour and quarter repeater, verge escapement, enamelled case.
Hour and quarter repeater with double wheel duplex escapement, snap calendar, engraved equation of time
Josiah Emery Straight Lever Escapement Chronometer.
Central seconds, regulateur dial, cylinder escapement