Chronometer with Earnshaw spring detent escapement, spherical balance spring.
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“Montre de souscription” with double wheel duplex escapement. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
Hour and quarter repeater, verge escapement, enamelled case.
Sully's escapement
Republican and Gregorian calendar, lever escapement by J.M. Pouizait, skeletonized movement.
Dead independent seconds movement, cylinder escapement.
Monthly and week calendar, with central seconds, verge escapement.
Hour and quarter repeater, cylinder escapement, enamel case
“Montre de souscription”.
Self-winding hour and quarter repeater with pedometric oscillating mass, cylinder escapement.
Montre a repetition des quart a toc, ruby cylinder escapement sold to Monsieur Recordon de Londres on 27 Fructidor an 10 (14 September 1802) for 1,500 FF.
“Montre de souscription” with calendar and virgule escapementa
Made on the Houriet principle with a special dial
Chronometer made by Joseph Thaddeus Winnerl on a movement by Robert Robin