Swiss sterling silver and green enamel ball form pendant watch Circa 1930

Sterling silver ball watch with matching chain
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A fine Swiss sterling silver and green painted enamel bezel ball-form pendant watch, circa 1930. Accompanied by its matching steel, green and white guilloché enamel chain. Green and black painted enamel with greek and fish motif. Silver dial, black Arabic numerals, outer minute track and blued steel hands. A rhodium-plated movement, straight-line lever escapement, cut monometallic compensation balance, blued steel flat balance spring, index regulator. Dial signed.
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Diameter: 23 mm
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Signed: Cortebert Swiss
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The dial and case are patinated and the case is also slightly chipped.