Thin Swiss platinum keyless Art Deco dress watch Circa 1925

Platinum open faced lever dress watch
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A very fine and rare, thin Swiss, platinum, enamel and yellow gold keyless Art Deco dress watch, circa 1925. Made for Tiffany & Co. by Patek, Philippe & Co., Genève. A decorated case with black enamel in a geometrical pattern with yellow gold rhomboids, the band with triple bead pattern at 2,5,8 and 11 o’clock, geometrical pendant and bow decorated en suite.
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Silvered dial with applied white gold stylized cubic Arabic numerals, outer minute dot divisions, subsidiary seconds. White gold spade hands. A nickel movement, 18 jewels, wolf’s tooth winding, straight-line lever escapement, cut bimetallic compensation balance with eight adjustments, flat balance spring, index regulator. Dial, case and movement signed. Property of an American Gentleman.
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Diameter: 46 mm
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Signed: Patek Philippe & Co  Genève