Swiss gold hunting cased anker chronometer with calendar Circa 1870

Gold full hunter with rare calendar
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An exceptionally heavy Swiss 18 Carat gold full hunter cased anker chronometer pocket watch with calendar, circa 1870. The timepiece features an anker chronometer movement, a sizable gold screwed chronometer balance, and a palladium hairspring with a special lever. On the front, there is a white enamel dial with Roman hour markers and outer minute divisions. It also includes subsidiary seconds and rose golden hands, although the second hand is absent. The watch boasts a unique calendar with a white enamel chapter ring that displays the date and weekdays on the back. Encased in an engine turned case, it is also numbered for identification.
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Diameter: 60 mm
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Weight: 183 g
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Signed: No name