Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.
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Dead central seconds watch with star duplex escapement invented by Charles Edouard Jacot with 1/4 second diablotine
Quarter andhour repeater, jumping hours device with experimental ruby verge escapement.
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.)
Quarter hour repeater by touch with special cylinder escapement.
Lever escapement and thermal compensation
“Montre de souscription a tact” sold to the brother of the Spanish Consul (Monsieur de la Serna) in Vendemiaire year X (1802) for 1,100 FF.
Verge escapement. Interesting watch of historical value for the signature referring to the Savoy kings.
Automatic winding with beating mass, perpetual monthly and weekly retrograde calendar, cylinder escapement.
Chronometer with patented detent escapement.
Dual scale thermometer on the Houriet principle
Straight lever escapement (attributable to Marguerite Dupont who was a watchmaker in Alençon in 1795)
Quarter hour repeater clock watch, verge escapement.
Montre simple medaillon eccentrique 13 lignes ½, cylinder escapement in ruby sold to Lionel Rothschild (banker) on 31 May 1831 for 1,400 FF.
Decimal watch with virgule escapement, power reserve, jumping hours and barometer, center seconds n.4737 belonging to Antoine Louis Leon de Saint-Just.
Montre de carrosse a repetition des quart et function de reveil sold to the count de Mercy Argentau on 09 June 1837 at the price of 620 FF, ancienne 1155 sold to Pierre de Salabert for the Marquise of Santa Cruz on 18 Floreal year 13 (08 May 1805) , at the price of 1,440 francs.