Swiss gold repeating carillon grande sonnerie clockwatch Circa 1913

Gold watch with engraved monogram
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A fine and very rare Swiss, 18 carat yellow gold hunting cased keyless pocket watch, circa 1913. A minute repeating, carillon grande sonnerie clockwatch with three hammers and three gongs. A polished case, the front cover with an engraved monogram and a hinged gold cuvette. White enamel dial, Arabic numerals, outer minute track, subsidiary seconds and gold Spade hands. Matte gilt movement, double train with differential winding, 30 jewels, straight line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring with overcoil, index regulator, striking the hours and quarters on three gongs with three hammers, centrifugal governor between the dial and dial plate, Silence/Sonnerie selection lever on the bezel border, repeating activated by a trip push piece in the band. Dial, case and movement signed.
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Diameter: 55 mm
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Signed: Zenith  Swiss
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This type of minute repeating Grande Sonnerie clockwatch movement, with a carillon on three gongs with three stacked hammers but without Petite Sonnerie, was usually commercialised by Zenith using the Cesar Racine patent.