Antique Honore Pons Clock

Price Type: auction
Sold Date: 11/11/2001
Pre-Sale Estimate: (subscribers only)
Sold For: (subscribers only)

Catalog Description:

Extremely rare and very fine dead center-seconds mantle regulator with one-second constant force detent escapement. Honor Pons, invented and executed in 12 months (Sept. 24, 1803 - Sept. 23, 1804) Precision Timekeeper with 1 Complication; Honor Pons, invented and executed in an XII (Sept. 24, 1803 - Sept. 23, 1804) Extremely rare and very fine dead center-seconds mantle regulator with one-second constant force detent escapement. C. Dark green rectangular marble base with gilt brass circular feet, wooden frame with four square columns supported by rectangular wooden block, classical wooden top with molded edges. D. Small enamel, set at the top with Roman hour chapter and outer minute ring. Center-seconds with white enamel ring with dot divisions and five-seconds Arabic markers, escapement visible in the center. Blued steel Breguet hands. M. Humpback, 16,5cm high, 14 cm wide, going barrel with five-wheel train, brass-steegridiron pendulum with knife-edge suspension and beat adjustment on the crutch, ingenious remontoir with escape wheel driven by an extremely small hollow weight, weighing less than one gram, whose cord is wound directly on the escape wheel arbor, constantly giving the same one-directional impulse. Winding is achieved as follows: unlocking jewel mounted on the T-shaped impulse frame, set on the same arbor as the crutch releases the detent, the escape wheel giving an impulse to the steel pin. Aftr the impulse is delivered a pin mounted on the escape wheel lifts a lever, unlocking the train, and consequently another pin on the last train wheel lifts the lever set on the escape wheel, locking it on the detent and winding the small weight. Most of the escapement detents and levers have adjustments; when adjusted properly it becomes a remarkably accurate detached escapement. Signed on the movement. Dim. Height 50 cm, base width 31cm.

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