Robin style movement with cylinder escapement.
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Chronometer with quarter hour repeater and calendar, pivoted detent escapement with experimental thermal compensation
Tide indicator, enamelled dial, cylinder escapement.
Quarter andhour repeater, jumping hours device with experimental ruby verge escapement.
Movement with experimental verge-lever escapement.
Chronometer fitted with a pivoted detent escapement and a balance with three-roller suspension.
“Montre de souscription”.
Dead independent seconds movement, cylinder escapement.
Hour and quarter repeater with verge escapement
Navigation chronometer with sidereal time indication.
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
Quarter hour repeater and calendar with Debaufre escapement modified by Pierre Le Roy
Quarter hour repeater, grand sonnerie clock watch, Robin detent lever escapement
Quarter hour repeater movement with duplex escapement.
Decimal watch with double time indication on a 24-hour basis, verge escapement.