Cylinder escapement
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Twin barrel chronometer, monthly calendar with ruby lateral lever escapement
Detent anchor escapement by Robert Robin, quarter hour repeater.
"Souscription" with auxiliary minutes and seconds
Escapement by Paul Garnier
Navigation chronometer with sidereal time indication.
“Double face”, hour and quarter repeater, monthly calendar, centre seconds, early cylinder escapement.
Double comma escapement (double virgule)
“Repètition dix minutes aux deux styles à volontè a heur sautants” with ruby cylinder escapement and parachute, sent “au freres Chaudoir”, 29 Pluviose an 10 (18 February 1802), revised at the request of Monsieur Mazeau in 1828.
Republican calendar with straight lever escapement
Ruby lever escapement.
Finished by son Pierre Le Roy, Sully escapement, calendar.
"Montre a repetition des quart a toc" Robin-style anchor escapement, sold on 28 June 1793 to Monsieur Fabre Loncle.
Hour and quarter repeater with cylinder escapement.
Alarm with verge escapement
Movement with experimental verge-lever escapement.