Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.
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“Double face”, hour and quarter repeater, monthly calendar, centre seconds, early cylinder escapement.
Dead central seconds watch with star duplex escapement invented by Charles Edouard Jacot with 1/4 second diablotine
Hour and quarter repeater with double wheel duplex escapement, snap calendar, engraved equation of time
Hour and quarter repeater and alarm with cylinder escapement.
“Repetition à ponts” con scappamento a cilindro in rubino, venduto al generale Nicholas Joseph Maison, il 30 settembre 1807 per 1.696 FF .
Hour and quarter repeater, cylinder escapement, enamel case
Detent anchor escapement by Robert Robin, quarter hour repeater.
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
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.)
“Resilient lever” lever escapement modified by Mortimer George Cole.
Reverse hour-quarter repeater (pull)
Chronometer with patented detent escapement.
George Graham lever escapement, double-dial astronomical watch, equation of time. Double face watch.
Cylinder escapement, quarter hour repeater.
Lever escapement, quarter hour repeater