Movement with lever detent escapement invented by Robert Robin
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Thirty-tooth “rack lever” escapement
“Montre de souscription”, with reverse caliber sold to Monsieur Manu on 1 May 1810 for 600 Francs
Cylinder escapement.
Hour and quarter repeater, mustache lever escapement
"Repetition demi quart sur timbres” with lever escapement on the “garde temps” principle, hunter case with secret “portrait” compartment, “jumping hours” device sold to Count Panin on 11 June 1821, for FF 4,800, reentered, restored and resold with number 4931 to Monsieur Lacroix of Turin on 16 May 1831 for 4800 francs.
Turkish market watch, hour and quarter repeater with ruby cylinder escapement, translucent red enamel case, sold to Leroy in Constantinople for 2,400 FF (Breguet agent).
Navigation chronometer with sidereal time indication.
"Souscription" with auxiliary minutes and seconds
Side lever experimental escapement
“Repetition à ponts” con scappamento a cilindro in rubino, venduto al generale Nicholas Joseph Maison, il 30 settembre 1807 per 1.696 FF .
“Resilient lever” lever escapement modified by Mortimer George Cole.
Decimal watch with double time indication on a 24-hour basis, verge escapement.
Hour and quarter repeater, cylinder escapement, enamel case
Sold to Son Excellence M. Achille Fould on 12 November 1860 for 950 FF. Presented to Professor Heinrich Siegel
‘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”.