Swiss 18K gold hunting cased repeating lever Circa 1897

Gold minute repeater by Robert Tanner
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A Swiss 18 carat gold hunting cased minute repeating lever pocket watch, circa 1897. Glazed bridge movement, lever escapement, two hammers, two gongs, screw compensation balance. White enamel dial with Arabic numerals and sunk subsidiary seconds at 6 o’clock. Plain case with an applied monogram on the front. Dial signed, case numbered. Comes with the original presentation box.
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Diameter: 55 mm
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Weight: 122 g
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Signed: Robert Tanner Bienne