Detent Lever escapement invented by Robert Robin. Restored by Breguet.
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Dead seconds chronometer with in-line straight lever escapement.
“Double-face” watch, monthly calendar, verge escapement, twelve- and twenty-four-hour indication.
Straight lever escapement (attributable to Marguerite Dupont who was a watchmaker in Alençon in 1795)
Lateral lever escapement, quarter hour repeater.
George Graham lever escapement, double-dial astronomical watch, equation of time. Double face watch.
Sold to Son Excellence M. Achille Fould on 12 November 1860 for 950 FF. Presented to Professor Heinrich Siegel
Quarter and half quarter hour repeater with ruby cylinder escapement no. 255.
Verge escapement. Interesting watch of historical value for the signature referring to the Savoy kings.
Verge escapement, enamelled case decorated with diamonds and pearls
Monthly and week calendar, with central seconds, verge escapement.
“Montre de souscription” with calendar and virgule escapementa
“Compteur militaire” cylinder escapement 84 divisions
Scappamento ad ancora e compensazione termica
Experimental verge escapement
Quarter hour repeater with lateral lever escapement