Swiss gold full hunter chronograph repeater Circa 1916

Fine, rare perpetual calendar chronograph with moon phase by Vacheron Constantin
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A fine and rare Swiss 18 carat rose gold hunting cased minute repeating perpetual calendar chronograph pocket watch with moon phases, circa 1916. Cal. RA 19”’ nickel lever movement, 38 jewels, precision regulator, two polished steel hammers minute repeating on coiled gongs. Signed gold cuvette. White enamel dial, Arabic numerals, sunken subsidiary dials for dayin French, date, month combined with 30 minute register and leap year indication, moon phases combined with constant seconds, outer minute scale with 1/5th of a second division. Heavy gold case, push button for chronograph to the band and repetition slide. Case and movement signed. Accompanied by a certificate of authenticity.
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Diameter: 54 mm
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Signed: Vacheron Constantin