Swiss keyless wind 18 carat gold chronograph watch Circa 1880

Gold hunting cased chronograph watch
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A very fine Danish/Swiss 18 Carat gold hunting cased chronograph watch, circa 1880. Nickel keyless movement jewelled through the centre, straight-line long lever escapement with gold caps to the bridges, bimetallic balance, over coil spring, regulator with a vernier scale on a centre bridge, Jürgensen’s patent bow setting mechanism, flyback chronograph work under dial activated by a single button on the band, signed gold cuvette.
White enamel dial with fifth second and minute tracks enclosing Roman chapters, subsidiary continuous seconds and blued steel Breguet hands. Engine-turned case. Case, dial and movement signed.
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Diameter: 52 mm
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Signed: Jules Jürgensen Copenhagen
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Jules Jürgensen was a watchmaking company. It was founded by Jürgen Jürgensen in 1740 in Denmark, when Jürgen Jürgensen went into partnership with Isaac Larpent, under the name “Larpent & Jürgensen”. Upon Jürgen’s death in 1811, his youngest son Frederik took over the company and changed the name to “Frederik Jürgensen”. Jules Jürgensen produced many watches in Switzerland.
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Jules Jürgensen (1808-1877) was born in Le Locle in 1808 as the son of watchmaker Urban Jürgensen (grandson of Jacques-Frédéric Houriet). In Copenhagen Jürgensen received his training in the watchmaking business of his family and in addition studied mathematics, astronomy and foreign languages. Shortly after the death of Jacques-Frédéric Houriet, Jürgensen went to Switzerland and opened a watch manufactory in Le Locle. His precision watches gained worldwide recognition.