Verge escapement, enamelled case decorated with diamonds and pearls
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Quarter hour repeater movement with duplex escapement.
“Montre de souscription” with verge escapement.
Double wheel verge 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.
Cylinder escapement
Robin's lever detent escapement of special shape
Hour and quarter repeater with cylinder escapement.
Hour and quarter repeater and alarm with cylinder escapement.
Quarter hour repeater with double wheel duplex escapement.
Double comma escapement (double virgule)
“Double face”, hour and quarter repeater, monthly calendar, centre seconds, early cylinder escapement.
Experimental verge escapement
Watch presented by Napoleon Bonaparte to Jean Joseph Gauthier on 21 Floréal Year VII (May 10, 1799), verge escapement
Cylinder escapement.
First generation early straight line lever escapement