Swiss platinum and diamond-set lady’s lapel watch Circa 1930

Platinum watch with comet-form brooch 
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Very fine Swiss platinum and diamond-set, keyless, lady’s lapel watch with an articulated integral comet-form brooch, circa 1930. A platinum case, bezel and brooch set with 112 round white diamonds of graduated size and 10 baguette white diamonds. Three-tone silver dial with Arabic numerals, outer minute track and blued steel hands. A rectangular, rhodium-plated movement, Geneva striping decoration, 15 jewels, straight-line lever escapement, monometallic balance, flat balance spring, and an index regulator. Dial signed. Overall length 80 mm.
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Diameter: 18 mm
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Signed: Dulux  Swiss