Swiss enamelled form watch in the shape of an umbrella Circa 1920

Unsigned form clock of exquisite quality
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A rare, exquisite, enamelled clock watch in the shape of an umbrella, circa 1920.
Silver case, engine-turned, blue enamelled top, winding over the handle, and crown pointer position hidden under the handle. Cartier-style dial, blue guilloche enamel, gold Roman numerals, and golden Art Deco hands. Swiss lever movement, 3- hallmarked and numbered.
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Diameter: 86 mm
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Unsigned.