Swiss gold repeater with chronograph and moon phases Circa 1910

Gold watch Retailed by J. Roca, Barcelona
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A large Swiss 18 carat yellow gold minute repeating keyless astronomical pocket watch, circa 1910.
With a triple-date calendar, chronograph and moon phases. Retailed by J. Roca, La Marina, Barcelona. An engine-turned case with polished borders, cartouche with engraved monogram. Hinged gold cuvette engraved with prize medals and technical details, glazed gold-rimmed cover to view the movement.
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White enamel dial with radial Arabic numerals, outer minute track and outermost fifths of a second division, subsidiary seconds dial combined with moon phases and date dial. Apertures for the days of the week, months and gilt spade hands. Frosted gilt movement, 17 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, centrifugal governor, index regulator, repeating on gongs activated by a push-button on the band. Case numbered, dial and cuvette signed.
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Diameter: 58 mm
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Thickness: 18 mm
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Signed: Vulcain  Swiss