Austrian 18K gold open faced lever pocket watch Circa 1900

Gold anker chronometer
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A very fine Austrian 18 carat gold open faced anker chronometer, circa 1900. Bridge movement with a large compensation balance and gold screws. The cuvette is inscribed Brüder Klumak Wien, I. Rothenthurm Str. 15 Chronometer-Macher der K.K. Kriegs-marine. White enamel dial with Roman hours, an outer minute track, sunk subsidiary seconds at 6 o’clock and spade hands. The plain case is monogrammed on the back. Dial signed, case numbered. Comes with the original presentation box.
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Diameter: 53 mm
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Weight: 119 g
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Signed: Brüder Klumak Wien
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Alongside Joseph Nicolaus, Vienna, the Klumak brothers are among the Austrian precision watch pioneers. Like Nicolaus, they were chronometer makers for the Imperial and Royal Austrian Navy.