Diamond gold and enamel lever pendant watch Circa 1920

Diamond set gold and enamel pendant watch
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A Swiss lever in a diamond set gold and enamel open face case and pendant, circa 1920. Keyless gilt bar movement with going barrel. Plain cock with polished steel regulator. Compensation balance with blue steel overcoil hairspring, club foot lever escapement. Signed gilt dial, Arabic numerals and blue steel Breguet hands. Slim gold open face gold case, clip on back with a border of white enamel to the translucent light blue enamel over an engine turned ground. Central cluster of diamonds in a white metal setting. Matching bow shaped gold and enamel diamond set pendant brooch.
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Diameter: 27 mm
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Signed: Le Roy et Fils 57 New Bond Street