Lever escapement and thermal compensation
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Cylinder escapement watch formerly belonging to Louis Bonaparte (1778–1846), brother of Napoleon, King of Holland, and passed down within the Imperial dynasty.
Compteur a pointage, nouveau modele chronographe a encre, sold at the College de France for 350 FF
Side lever experimental escapement
Sold to Son Excellence M. Achille Fould on 12 November 1860 for 950 FF. Presented to Professor Heinrich Siegel
Independent seconds movement, lateral lever 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.
Duplex double wheel escapement, monthly republican calendar.
Revolutionary with Robin type 2 dial, republican calendar, verge escapement
Orologio a secondi morti con scappamento a virgola
Escapement “pallet pin weel”
Weekly winding device, monthly calendar, with comma escapement
“Simple gold watch with grandes secondes d’un coup” sold on 1 March 1860 to Monsieur Mathias for 655 francs, returned by the same on 8 March 1866, resold to Monsieur Henry Mallet for 875 francs to be presented to Doctor Lienard, double barrel, independent seconds, lever escapement.
“Repètition dix minutes aux deux styles à volontè a heur sautants” with ruby cylinder escapement and parachute, sent “au freres Chaudoir”, 29 Pluviose an 10 (18 February 1802), revised at the request of Monsieur Mazeau in 1828.
Cylinder escapement by a pupil of Robin