1,598,500 CHF
Precision Timekeeper with 3 ComplicationsAntide Janvier, "pour son Ami Gorcy, composé à Paris, terminé en 1810". Unique and spectacular, astronomical, 3 week-going, double overhanging pendulum, "resonance" mantle regulator with two independent trains, each with one-second remontoir and Berthoud type detent escapement. Rectangular mahogany base with rounded front corners, applied ormolu decoration in the front depicting two fish spouting water, supporting a protective glass dome. Rectangular, 19,5 cm wide, 12,8 cm high, brass, mounted to heavy brass frame, two trains, each one with its own ingeniously simple constant force Berthoud detent escapement, two brass-steel gridiron compensating pendulums beating half seconds, knife-edge suspensions. Each escapement consist of pivoted rocking frame holding wheel, say, "A" and pivoted in such a way that it meshes with the pinion "B" (10eaves) of the fifth train wheel "C" (10 teeth) resembling an escape wheel. The rocking bar by the force of gravity falls down on the side where the wheel "A" is pivoted. The other side of the wheel meshes with 10-tooth escape wheel so, when the escape wheel is locked, the force of mainspring transmitted by the pinion "B" lifts the wheel A and consequently raises the bar, furnishing constant energy to the escapement. The end of the rocking bar is terminated with a detent that locks the wheel "C"ust after the lifting. The pendulum unlocks the escape wheel which is driven by the falling a
Auctioneer:
Antiquorum
Date:
2001-11-11
