Hour and quarter repeater, cylinder escapement, hunting case.
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Chronometer with patented detent escapement.
Orologio a secondi morti con scappamento a virgola
Central seconds, regulateur dial, cylinder escapement
“Montre de souscription” with calendar and virgule escapementa
Independent seconds movement, lateral lever escapement.
"Souscription" with auxiliary minutes and seconds
Josiah Emery Straight Lever Escapement Chronometer.
Dead independent seconds movement, 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.
“Rèpètition à minutes” chronometer with double-wheel duplex escapement, sold to the Spanish Princes in Valençay on 29 May 1809 for the price of 2,400 F.
Hour and quarter repeater, verge escapement, enamelled case.
Double comma escapement (double virgule)
Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.
Thirty-tooth “rack lever” escapement