Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
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Cylinder escapement
First generation early straight line lever escapement
Dead seconds watch with duplex lever escapement by Jean Renaud
Republican calendar with straight lever escapement
Quarter hour repeater with lateral lever escapement
“Montre de souscription” with verge escapement.
Decimal watch with double time indication on a 24-hour basis, verge escapement.
Lever escapement, quarter hour repeater
‘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”.
Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.
Decimal watch with calendar and special escapement
Duplex double wheel escapement, monthly republican calendar.
Elève de Winnerl, chronometer with lever escapement.
Hour and quarter repeater, verge escapement, enamelled case.
Quarter andhour repeater, jumping hours device with experimental ruby verge escapement.