“Montre de souscription” with double wheel duplex escapement
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Lateral lever escapement, quarter hour repeater.
Ruby lever escapement.
Hour and quarter repeater, cylinder escapement, hunting case.
Duplex double wheel escapement, monthly republican calendar.
Chronometer with Earnshaw spring detent escapement, spherical balance spring.
Small-sized watch built on the principle of chronometers with monthly calendar, lever escapement sold to Baron Schickler on 30 December 1828 for the price of 3,600 FF.
Robin's lever detent escapement of special shape
Cylinder escapement by a pupil of Robin
"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.
Chronometer with lever escapement.
"Montre simple” N.3707 sold to Monsieur Furchy Notaire on 31 June 1822 for 1140 FF.
Twin barrel chronometer, monthly calendar with ruby lateral lever escapement
"Rèpètition de première Classe sur les Principes des Chronomètres", calendar, ruby lever escapement, hour, quarter and half-quarter repeater, sold to M. le Professeur Shumacher, on 23 February 1829 for 3,200 FF.
Decimal watch with double time indication on a 24-hour basis, verge escapement, enamelled case
First generation French lever escapement movement