Detent anchor escapement by Robert Robin, quarter hour repeater.
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Chronometer with Earnshaw spring detent escapement, spherical balance spring.
Straight lever escapement, registered on 30 September 1791, there is no information regarding the sale.
Central seconds, regulateur dial, cylinder escapement
Decimal watch with calendar and special escapement
“Montre de souscription”.
Watch presented by Napoleon Bonaparte to Jean Joseph Gauthier on 21 Floréal Year VII (May 10, 1799), verge escapement
Anonymous watch with central and auxiliary dead seconds, chicane lever escapement
“Rèpètition des quart a toc” with ruby cylinder escapement, “jumping hour” device sold to monsieur Frederic Frackmann (Breguet’s correspondent in Moscow) on 15 Germinal anno 12 (5 May 1804) for the price of 1500 FF.
Quarter hour repeater with lateral lever escapement
Lateral lever escapement, quarter hour repeater.
Ruby lever escapement.
Tide indicator, enamelled dial, cylinder escapement.
Built on the principle of “garde temps”, quarter and half quarter hour repeater with double wheel duplex escapement sold to Monsieur Egerston (Egerton) on 17 December 1813 for 3,000 FF .
George Graham lever escapement, double-dial astronomical watch, equation of time. Double face watch.
Quarter hour repeater with double wheel duplex escapement.