Tourbillon with rotation per minute
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“Compteur militaire” cylinder escapement 84 divisions
‘Montre a repetition des quart a toc’ lever escapement, monthly calendar, sold on 09 August 1792 to Monsieur Robert (Anglais) for 1800 francs “Nouveau calibre”.
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.
Double wheel verge escapement.
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.
Scappamento ad ancora detent di Robin
Revolutionary with Robin type 2 dial, republican calendar, verge escapement
Finished by son Pierre Le Roy, Sully escapement, calendar.
First generation early straight line lever escapement
Robin's lever detent escapement of special shape
“Montre de souscription” with double wheel duplex escapement
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
Twin barrel chronometer, monthly calendar with ruby lateral lever escapement
“Resilient lever” lever escapement modified by Mortimer George Cole.
“Montre de souscription” case n.307 « Remise a son excellence l'Ambassadeur de Espagne pou faire passer a Monsieur X » 5 Terminador an 9 (24 Jullet 1801)