Dead-beat seconds watch with double-wheel duplex escapement.
Log in or register.
Monthly and weekly calendar, with virgule escapement and “diablotine”
“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.
« Simple garde-temps, arbre percé 20 lignes échappement ancre” sold to Monsieur de Bignon 11 March 1858.
Chronometer with lever escapement.
Dead independent seconds movement, cylinder escapement.
Self-winding hour and quarter repeater with pedometric oscillating mass, cylinder escapement.
Movement with experimental lateral lever escapement in the Robin style.
‘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”.
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
Ruby lever escapement.
George Graham lever escapement, double-dial astronomical watch, equation of time. Double face watch.
Cylinder escapement, quarter hour repeater.
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
First generation early straight line lever escapement
Side lever escapement.