Josiah Emery Straight Lever Escapement Chronometer.
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Escapement “pallet pin weel”
Dead seconds chronometer with in-line straight lever escapement.
First generation early straight line lever escapement
“Subscription" watch, Cassa di Joly no. 1769, sold to Prince Kurakin on August 9, 1811, for 1,080 FF, returned in 1812 and resold to the Princes of Valencay on May 8, 1812, for 980 FF.”
Detent Lever escapement invented by Robert Robin. Restored by Breguet.
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
“Montre de souscription”.
Navigation chronometer with sidereal time indication.
“Club footed” verge escapement.
Revolutionary and Gregorian calendar, "virgule" escapement.
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.
Verge escapement. Interesting watch of historical value for the signature referring to the Savoy kings.
Dead seconds watch with duplex lever escapement by Jean Renaud
Seven-day power reserve, cylinder escapement.