Swiss 18K gold and enamel dress pocket watch Circa 1925

Gold open faced keyless lever 
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A Swiss 18K yellow gold and enamel keyless dress pocket watch, circa 1925. A polished and brushed case, outer reverse and bezel with black enamel decoration to a gold pattern, the band with black enamel. Brushed silver dial, applied yellow gold Breguet numerals, outer minute track, subsidiary seconds and gold lozenge hands. A rhodium-plated movement, 18 jewels, straight-line lever escapement, cut bimetallic compensation balance adjusted to eight positions, blued steel flat balance spring, and an index regulator. Dial, case and movement signed, the movement also signed by retailer Brock & Company, Los Angeles Calif.
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Diameter: 44 mm
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Signed: Patek Philippe  Genève
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The case is slightly scratched.