Swiss silver chronometer watch for the American market Circa 1890

Unsigned silver pocket watch with open face
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An extremely heavy Swiss pivoted detent chronometer for the American market, circa 1890.
Swiss rocker chronometer with cylindrical spiral, fine adjustment and gold chatons, detent escapement, signed: Chronometre. Original enamel dial (defective / restored), signed Chronometre, Breguet-style radial hours, outer minutes track, subsidiary dial for the seconds, and blued steel hands. Silver polished case, of top American quality, with gold hinges and engraved coat of arms.
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Diameter: 61 mm
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Weight: 243 g
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Signed: Chronometre