German 18 carat gold anker chronometer watch Circa 1900

Pocket watch with an anker chronometer escapement
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An important anker chronometer watch in the original box, made by the Uhrenfabrik Union in Glashütte, Germany, circa 1900. This watch features a numbered 18 carat gold case and an enamel dial with an outer minute and hour that with Arabic numerals for the 5 minute intervals (red) and the hours (black), a subsidiary seconds dial at 6 o’clock and gold hands. The numbered, glazed and quality 1A movement is fitted with an anker chronometer escapement, a chronometer balance wheel, a gold escape wheel, screwed gold chatons and a fine adjustment.
The case and movement have matching numbers and the dial and movement are signed.
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Diameter: 56 mm
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Weight: 128 g
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Signed: Uhrenfabrik Union Glashütte in Sachsen
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The watch comes in its original box with a replacement glass. The item presented here is an extremely rare quality watch by Uhrenfabrik Union, much rarer than the chronometers by A. Lange & Söhne