Gold enamel and diamond-set pendant watch Circa 1920

Decorative open faced lever watch and chain
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An unsigned 18-carat gold, enamel and diamond-set open faced keyless decorative pendant watch with matching chain, circa 1920.
Rhodium-plated movement, straight-line lever escapement, compensated balance with gold poising screws and blued steel hairspring with terminal curve. Silvered matte dial with Breguet numerals, outer minutes track, and blued steel hands. Blue translucent enamel case back, diamond set filigree central motif. Accompanied by 18-carat yellow gold and enamel chain decorated ensuite.
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Dimensions: 34 x 19.5 mm
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Signed: No name