Quarter hour repeater movement with duplex escapement.
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Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.
Anonymous watch with central and auxiliary dead seconds, chicane lever escapement
Quarter hour repeater by touch with special cylinder escapement.
Dead seconds watch with lever escapement by Pouzait
Movement with experimental verge-lever escapement.
Monthly and weekly calendar, with virgule escapement and “diablotine”
Tide indicator, enamelled dial, cylinder escapement.
Sully's escapement
Cylinder escapement, quarter hour repeater.
Montre simple medaillon eccentrique 13 lignes ½, cylinder escapement in ruby sold to Lionel Rothschild (banker) on 31 May 1831 for 1,400 FF.
Decimal watch with double time indication on a 24-hour basis, verge escapement.
Cylinder escapement.
Hour and quarter repeater, verge escapement, enamelled case.
Quarter hour repeater cylinder escapement
“Montre de souscription” with verge escapement.