Albert H. Potter & Co. Geneva, No. 17, made circa 1880. Rare 18 ct. gold, hunting cased, keyless pocket chronometer. | Important Watches, Wristwatches and Clocks | Geneva, Hotel Des Bergues, 10th April 1994

Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Apr 10, 1994

LOT 278

Albert H. Potter & Co. Geneva, No. 17, made circa 1880. Rare 18 ct. gold, hunting cased, keyless pocket chronometer.

CHF 40,000 - 50,000

C. Three body, massive, "bassine et filets" polished. Glazed gold cuvette. D. White enamel with Roman numerals and sunk subsidiary seconds. Blued steel Breguet hands. M. 21-, nickel plated, patented caliber, " fausses côtes" decoration, 21 jewels, majority in screwed gold settings, great wheel screwed on to the barre) cap. Patented pivoted detent escapement, shock-absorbing counterpoised and off-set passing spring. Two armed cut bimetallic balance, free sprung helical balance spring with terminal curves. Signed on the dial, case and movement. In very good condition. Diam. 56 mm.

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This watch employs three of Potter's patents, the details of which are engraved on the bridges. The plate design, which is virtual machining from the solid, was patented on January 4, 1875, the escapement and presumably the great wheel design, on October 11, 1875. Albert Potter's work is not only rare, but always of top quality and completely original design.