226,250 CHF
“Sidereal and Mean Time Valet Astronomique” Breguet & Fils, No. 3144, “Pendule Astronomique”, sold to Monsieur Ducom on November 10, 1817 for 800 Francs. Very fine and important, mahogany eight-day going weight driven high precision astronomical floor-standing regulator with center seconds and pendulum calibrated for both sidereal and mean time. Rectangular, veneered, hinged glazed door with lock, heavy wooden back mounted with a heavy gilt brass bracket fixed with the pendulum suspension and two movement mounting brass brackets, ormolu bezel with palm leaf decoration. White enamel, radial Roman numerals, outer minute and seconds track. Blued steel Breguet hands. Circular brass movement contained in a brass cylinder, full plate, the barrel with maintaining power, heavy brass weight and counterweight, fourwheel train, modified Graham dead-beat escapement with adjustable steel pallets, the escape wheel in the center of the back plate, second-beating pendulum made of two wood rods, heavy brass bob, the rod with secondary brass bob mounted between the wood rods for micrometric adjustment of both mean time and sidereal time, mean time by raising the bob, sidereal time by lowering the bob. Signed on the dial and the back plate. Dim. height 89 cm. width 53.5 cm, depth 29 cm. Notes The pendulum of the present clock is possibly unique and certainly exceptionally rare. Two parallel wooden rods are fixed to either side of the large brass bob and at the upper end to the suspension
Auctioneer:
Antiquorum
Date:
2005-11-13
