American cabriolet isochronal pocket chronometer Circa 1860

Gold Chronometer by Charles Fasoldt
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A fine and rare American 18 carat gold cabriolet keywound isochronal pocket chronometer, circa 1860. Gilt finished movement, patented pivoted detent escapement, bimetallic compensation balance. Gold cuvette. White enamel dial with Roman numerals and subsidiary seconds. Plain cabriolet case signed BALDWIN & CO. PAT’D. APRIL 13, 1858, cuvette, dial and movement signed.
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Diameter: 57 mm
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Signed: Charles Fasoldt Albany NY