Lever escapement and thermal compensation
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Monthly and weekly calendar, with virgule escapement and “diablotine”
Detent anchor escapement by Robert Robin, quarter hour repeater.
Watch presented by Napoleon Bonaparte to Jean Joseph Gauthier on 21 Floréal Year VII (May 10, 1799), verge escapement
Quarter hour repeater movement with duplex escapement.
Duplex double wheel escapement, monthly republican calendar.
“Club footed” verge escapement.
Alarm with verge escapement
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
Anonymous watch with central and auxiliary dead seconds, chicane lever escapement
Straight lever escapement, registered on 30 September 1791, there is no information regarding the sale.
Made on the Houriet principle with a special dial
Revolutionary and Gregorian calendar, "virgule" escapement.
“Compteur militaire” cylinder escapement 84 divisions
Robin's lever detent escapement of special shape
Chronometer with Robin escapement