Dead seconds chronometer with in-line straight lever escapement.
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First generation French lever escapement movement
Garde temps with detent pivotè escapement, sold to Prince Sergey Sergeevich Gagarine, 1 May 1810 for 1,200 FF, as recorded in Moreau's archives.
Navigation chronometer with sidereal time indication.
Lever escapement, quarter and hour repeater, republican calendar.
“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.
“Resilient lever” lever escapement modified by Mortimer George Cole.
“Montre de souscription” with double wheel 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
Decimal watch with double time indication on a 24-hour basis, verge escapement.
Decimal watch with calendar and special escapement
Quarter hour repeater with double wheel duplex escapement.
Cylinder escapement.
Finished by son Pierre Le Roy, Sully escapement, calendar.
Dead seconds watch with detent escapement
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.