Swiss gold, diamonds and guilloché enamel pocket watch Circa 1900

Gold keyless lever lady’s watch 
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A fine, 18K gold, enamel and diamond-set, keyless lady’s pendant watch, circa 1900. Hinged bezel decorated with blue and white guilloché enamel, hinged back overlaid with blue guilloché enamel and a central star set with a rose-cut diamond. Silver dial, engine-turning with radial Arabic numerals, outer minute track. Blued steel Breguet hands.
A matte gilt movement, 15 jewels, wolf’s tooth winding, straight-line lever escapement, cut bimetallic compensation balance, blued steel flat balance spring, index regulator. Case numbered.
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Diameter: 27 mm
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Signed: No Name
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The dial is patinated.