THE PROPERTY OF A EUROPEAN COLLECTOR
AN IMPORTANT CHARLES II HIGHLY COMPLICATED LONG DURATION ASTRONOMICAL STRIKING SKELETON CLOCK WITH EQUATION OF TIME

Details
AN IMPORTANT CHARLES II HIGHLY COMPLICATED LONG DURATION ASTRONOMICAL STRIKING SKELETON CLOCK WITH EQUATION OF TIME
J.F. Henri Motel A Paris

the 6in. diam. silvered engraved dial with Roman mean time chapter ring with outer date ring calibrated 1 to 31 with two sets of divisions giving solar and mean-solar days, inner concentric ring engraved with the following twin indications; the outer upper edge calibrated for the equation of time and engraved soleil avance and soleil retard, the inner ring engraved with the months and their relevant number of days, all hands of blued steel, the full signature reading J.F. Henri Motel A Paris Horger. de La Marine Royale, the fully skeletonised centre displaying a kidney wheel with blued steel arrowhead pointer indicating the meantime calendar, the large diameter seconds ring above intersecting the main dial and with counterpoised sweep centre seconds blued steel hand, inner subsidiary concentric rings on the left showing hours of sunrise and sunset with silvered shutters adjusting throughout the year and engraved ascension diurne due soleil; on the right the age and phase of moon and inscribed revolution et phases de la lune, the movement with six double-screwed pillars, all wheels finely made with six crossings, the massive going barrel carrying two great wheels; the larger giving power to the high-count going train with vertically-mounted verge escapement, the bimetallic balance wheel having wedge-shaped heat compensation weights and blued helical spring; the striking train with rack-and-snail work planted on the back, the pinwheel interacting with a worm with extended arbor for the twin flies, the strike on a bell above via vertically positoined hammer, the whole frame anchored to rectangular ormolu plinths supported on a mahogany rectangular base with mahogany-framed protecting case
22¾in. (58cm.) high
Literature
Derek Roberts, Continental and American skeleton clocks, Schiffer, 1989, p. 43, figs. 31 & 32
Jean-Claude Sabrier, Louis Berthoud et Henri Motel, Antiquorum, 1993, pp. 593-630

Lot Essay

Jean-François Henri Motel, 1786-1859, was born at Margny-les-Compiegne the son of a tavern keeper and farmer. In 1794 he he went to Prytanée and then to the Ecole des Art et Métier at Chalons until 1806. Having shown great aptitude he was selected by ministerial decision to be intstructed on the art of horology, at the Government's expense, at the workshops of Louis Berthoud.
Motel had only just finished his apprenticeship in 1813 when Berthoud died. However Motel was by then Berthoud's outstanding pupil and more than capable of taking over the mantle of Horloger de la Marine. The job was at first given to Abraham Louis Breguet but such was the quantity of unfinished stock left over in Berthoud's workshop that the Government were obliged to have Motel supply them despite Breguet's official title. Motel's work did not go unnoticed and on Breguet's death in 1823 he was given the the official title.
Motel's work on chronometry was innovative and of the highest quality but he made very few clocks. The present example is one of only two skeleton clocks known by Motel. Its highly individual dial lay-out and complexity of movement is certainly a tribute to an otherwise austere albeit brilliant clockmaker.

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