Robin's lever detent escapement of special shape
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“Répétition des quarts à ponts moyenne, 15 lignes, boîte or n. 3510, échappement à cylindre”. Sold on 05 November 1817 to Madame Soehnée. Monthly calendar and secret compartment containing a lock of hair.
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.
Dead seconds watch with duplex lever escapement by Jean Renaud
“Repetition à ponts” con scappamento a cilindro in rubino, venduto al generale Nicholas Joseph Maison, il 30 settembre 1807 per 1.696 FF .
Finished by son Pierre Le Roy, Sully escapement, calendar.
Quarter and half quarter hour repeater with ruby cylinder escapement no. 255.
First generation French lever escapement movement
“Compteur militaire” cylinder escapement 84 divisions
Seven-day power reserve, cylinder escapement.
Verge escapement, enamelled case decorated with diamonds and pearls
Verge escapement. Interesting watch of historical value for the signature referring to the Savoy kings.
“Répétition à ponts, medium size, 19 lignes, pierced arbor, gold case no. 4068, half-quarter repeating, lever escapement,” sold on 16 March 1826 to Monsieur Spies. Monthly calendar and a secret compartment containing the portrait of a young woman.
Movement with experimental lateral lever escapement in the Robin style.
Experimental verge escapement
Quarter hour repeater with double wheel duplex escapement.