Danish 18K gold hunting cased pocket chronometer Circa 1880

Gold chronometer with Jürgensen’s winding and hand-setting mechanism
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A very fine Danish 18 carat gold hunting cased keyless pocket chronometer with Jürgensen’s winding and hand-setting mechanism, patented on January 15th, 1867, circa 1880. Nickel-silver movement, 20 jewels, Earnshaw-type chronometer escapement with pivoted detent, gold escape wheel, the detent pivot and escape wheel pivot with gold caps, cut bimetallic compensation balance with gold timing screws, blued steel Breguet balance spring, steel post to prevent excessive amplitudes, index regulator, wolf’s tooth winding wheels. Gold hinged cuvette. White enamel dial with painted Roman numerals, outer minute track, large subsidiary seconds and original blued steel Breguet hands. Engine-turned case, reeded band. Dial, case and movement signed.
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Diameter: 50 mm
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Thickness: 15 mm
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Signed: Jules Jürgensen Copenhagen