Quarter hour repeater with double wheel duplex escapement.
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Side lever escapement.
Hour and quarter repeater, verge escapement, enamelled case.
Experimental verge escapement
“Resilient lever” lever escapement modified by Mortimer George Cole.
Chronometer with Robin escapement
Weekly winding device, monthly calendar, with comma escapement
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
Thirty-tooth “rack lever” 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.
“Montre de souscription” apocryphal. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Hour and quarter repeater, mustache lever escapement
Side lever experimental escapement
“Montre petit medaillon simple, 13 lignes, pierced arbor, gold case with revolving back, no. 3261, moon phase, lever escapement”. Sold on 02 April 1814 to His Majesty the Emperor of Russia (Alexander I) for the sum of 2,400 francs.
Navigation chronometer with sidereal time indication.