Swiss 18K gold keyless IWC Schaffhausen pocket watch Circa 1913

Gold pocket watch by International Watch Co
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A rare, Swiss 18K gold keyless IWC men’s pocket watch with open face, circa 1913. IWC precision lever movement No.599881, screwed gold chatons, fine adjustment. Signed enamel dial with Breguet style radial hours, outer minutes track, subsidiary dial for the seconds, and gold Breguet hands. Plain polished 18 carat gold case, case numbered, very solid case quality for an open men’s watch.
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Diameter: 52 mm
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Weight: 86 g
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Signed: International Watch Co Schaffhausen