Swiss platinum and diamond-set keyless dress watch Circa 1925

Platinum keyless lever dress watch
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A Swiss platinum and diamond-set keyless dress watch, circa 1925. A polished case, the bezel and bow set with white diamonds, the bow engraved Amigos Universidad Central Y Real Academia Espanola X-929, and the back engraved with a monogram. Matte silver dial with champlevé cubist numerals, outer minute track, and subsidiary seconds. Blued steel Breguet hands. A rhodium-plated, Geneva striping decoration, stamped twice with the seal of Geneva quality mark, 17 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Dial, case and movement signed Tiffany and Co., movement with Didisheim trademark.
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Diameter: 43 mm
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Signed: H.A. Ditisheim  Swiss