Slim Swiss platinum open faced lever dress watch Circa 1925

Platinum lever dress watch by Audemars Piguet
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A fine and slim Swiss platinum open faced lever dress watch, made in the 1920s. Retailed by Black, Starr & Frost, New York. Rhodium-plated movement, 17 jewels, cut bimetallic balance with seven adjustments, blued steel flat hairspring, index regulator. Silvered dial with black Roman numerals, outer minute track and original gold cathedral hands. Solid case, satin finish, initials FGC engraved to the reverse. Dial, case and movement signed by retailer, movement also signed by watchmaker, case and movement numbered.
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Diameter: 44 mm
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Signed: Audemars Piguet & Co