Swiss gold open faced keyless pocket watch Circa 1921

A Swiss gold and enamel open faced keyless pocket watch, circa 1921. Cal. 17”’ manual winding nickel lever jeweled movement. Silvered dial, applied Arabic numerals and subsidiary seconds. 18 Carat gold case, both bezels with black and green champlevé enamel, engraved band, hinged case back. Case, dial and movement signed. With an Extract from the Archives confirming production in 1921 and sale on October 15th, 1923.
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