Double wheel verge escapement.
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Double-dial astronomical watch with cylinder escapement, centre seconds, and equation of time.
“Montre de souscription” apocryphal. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017
“In homage to A.L. Breguet”, chronometer with thermometer, weekly calendar and power reserve.
Ruby lever escapement.
Side lever experimental escapement
Chronometer with Earnshaw spring detent escapement, spherical balance spring.
Seven-day power reserve, cylinder escapement.
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
Chronometer fitted with a pivoted detent escapement and a balance with three-roller suspension.
Garde temps, rèpètition de première Classe sur les princes des chronomètre” sold to Count Mercy d’Argenteau on 28 January 1824 for 3,400 FF. Repetition of hours, quarters and half quarters, monthly calendar. Jumping hour.
First generation early straight line lever escapement
“Montre de souscription” with calendar and virgule escapementa
Anonymous watch with central and auxiliary dead seconds, chicane lever escapement
Dead seconds watch with detent escapement
Chronometer with lever escapement.