Lever escapement, quarter hour repeater
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Quarter hour repeater movement with duplex escapement.
“Montre de souscription”, sold to Adjutant Gènèral Ricard on 15 December 1813 for 600 F.F. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Navigation chronometer with sidereal time indication.
Hour and quarter repeater, cylinder escapement, enamel case
Automatic winding with beating mass, perpetual monthly and weekly retrograde calendar, cylinder escapement.
Dead central seconds watch with star duplex escapement invented by Charles Edouard Jacot with 1/4 second diablotine
“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.
Orologio a secondi morti con scappamento a virgola
First generation French lever escapement movement
“Montre de souscription”.
Weekly winding device, monthly calendar, with comma escapement
Independent seconds movement, lateral lever escapement.
Garde temps, rèpètition de première Classe sur les princes des chronomètre” sold to Count Mercy d’Argenteau on 28 January 1824 for 3,400 FF. Repetition of hours, quarters and half quarters, monthly calendar. Jumping hour.
Quarter and half quarter hour repeater with ruby cylinder escapement no. 255.
Movement with “à pattes d'ecrevisses” (crab leg) escapement