Navigation chronometer with sidereal time indication.
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Straight lever escapement, registered on 30 September 1791, there is no information regarding the sale.
“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.
Chronometer made by Joseph Thaddeus Winnerl on a movement by Robert Robin
Movement with particular Pouzait lever escapement, quarter hour repeater
Elève de Winnerl, chronometer with lever escapement.
First generation French lever escapement movement
Chronometer with pivoted detent escapement sold to M. le General Cafarelli, Prèfet Maritime de Brest le 16 Messidor anno XI (5 July 1803) for 70 Louis.
Detent Lever escapement invented by Robert Robin. Restored by Breguet.
Escapement “pallet pin weel”
Dead central seconds watch with star duplex escapement invented by Charles Edouard Jacot with 1/4 second diablotine
Orologio a secondi morti con scappamento a virgola
Revolutionary and Gregorian calendar, "virgule" escapement.
Movement with lever detent escapement invented by Robert Robin
Hour and quarter touch repeater with Debaufre escapement modified by Pierre Le Roy, enamelled case.
Republican calendar with straight lever escapement