Quarter hour repeater with double wheel duplex escapement.
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First generation early straight line lever escapement
Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.
“In homage to A.L. Breguet”, chronometer with thermometer, weekly calendar and power reserve.
Escapement “pallet pin weel”
Cylinder escapement watch formerly belonging to Louis Bonaparte (1778–1846), brother of Napoleon, King of Holland, and passed down within the Imperial dynasty.
Lateral lever escapement, quarter hour repeater.
Made on the Houriet principle with a special dial
"Souscription" with auxiliary minutes and seconds
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
“Montre de souscription” case n.918 sold au freres Chaudoir 20 Nivose an 13 (10 Janvier 1805)
Cylinder escapement by a pupil of Robin
Large display watch with cylinder escapement and dead central seconds.
Extra-flat watch with regulator dial, lever escapement, Rèaumur thermometer.
‘Montre a repetition des quart a toc’ lever escapement, monthly calendar, sold on 09 August 1792 to Monsieur Robert (Anglais) for 1800 francs “Nouveau calibre”.
Turkish market watch, hour and quarter repeater with ruby cylinder escapement, translucent red enamel case, sold to Leroy in Constantinople for 2,400 FF (Breguet agent).