Quarter hour repeater clock watch, verge escapement.
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Scappamento ad ancora detent di Robin
“Montre de souscription” with double wheel duplex escapement. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Quarter hour repeater by touch with special cylinder escapement.
Robin's lever detent escapement of special shape
Lever escapement and thermal compensation
Josiah Emery Straight Lever Escapement Chronometer.
“Montre de souscription” with verge escapement.
Tide indicator, enamelled dial, cylinder escapement.
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
Seven-day power reserve, cylinder escapement.
Chronometer with lever escapement.
Watch presented by Napoleon Bonaparte to Jean Joseph Gauthier on 21 Floréal Year VII (May 10, 1799), verge escapement
“Resilient lever” lever escapement modified by Mortimer George Cole.
Montre simple a deux aguilles a secondes sien 140 boite en or n.2429 envoyé a Melin de Londres en cadeau pour le prix de 1030 FF le 11 mai 1821. (la n.140 Montre simple à secondes, boîte d’or Vendue le 9 frimaire an 5 (29 novembre 1796) à Monsieur Lavillete 576 FF.)