The escapement of this watch is drawn from that invented by Henry Sully in 1718 and used for his famous Horloge Marine, presentee] to the Academie Royale des Sciences in 1724. Only very few eminent makers, including Pierre Le Roy, the eminent son of Julien Le Roy, used this type of escapement during the 18th century. A variant of this escapement with a double escape wheel and a single pallet on the balance staff, invented by Enderlin, the eminent maker, and improved by Paul Gamier, was used on carriage clocks circa 1830. Joly a Limoge This eminent provincial watchmaker is reputed to have restored in 1758 an automaton astronomical clock designed as a figure of Father Time, made for the Monastery of Saint Martial from where it was removed by Brousseaux. It was subsequently sold in 1807 to the Church of Saint Pierre-du-Quicroi where it was fitted above the organ. It was replaced in 1863 by a clock made by Collin, Successor of B.H. Wagner who presented the old movement to the Town Museum of Limoge. When he restored the clock, Joly improved the mechanism by a pendulum in place of the foliot and adding a subsidiary automaton serpent striking the quarters.