Slim Swiss platinum open faced lever pocket watch Circa 1910

Platinum watch with silvered dial
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A fine and slim Swiss platinum open faced pocket watch, circa 1910. A solid, polished, bassine, hinged case back and round bezel. Matte silvered dial with black Roman numerals, outer minute track, blued steel cathedral hands and subsidiary seconds, Rhodium-plated movement, 17 jewels, cut bimetallic balance, lever escapement, blued steel Breguet balance spring, and an index regulator. Dial, movement signed.
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Thickness: 8 mm
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Diameter: 43 mm
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Signed: Audemars Piguet & Co  Brassus & Genève
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The case and dial are both slightly scratched.