Swiss gold chronograph with jumping fifth seconds Circa 1900

Gold two train chronograph watch with jumping fifth seconds
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A Swiss gold hunting cased two train chronograph watch with jumping fifth seconds, circa 1900, two-train nickel lever movement, jeweled, the trains wound alternatively.
White enamel dial, Roman numerals, outer track calibrated for chronograph seconds with red 1/5 seconds divisions, subsidiary dial for jumping fifths, 18k yellow gold engine turned case, band with chronograph button, glazed cuvette, case, dial, and movement signed.
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Diameter: 53 mm
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Signed: Jules Jürgensen Copenhagen