Swiss silver open faced with in relief farming decoration Circa 1930

Silver open faced keyless lever 
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A fine Swiss, sterling silver and gold keyless pocket watch with in relief farming decoration, circa 1930. A hinged case back with in relief decoration depicting two horses and a farmer plowing the field, band decorated with floral and leaf pattern, hinged cuvette with engraved Grand Prix medals. White enamel dial with painted Arabic numerals, outer minute track, sunk subsidiary seconds dial and gold spade hands. Rhodium plated movement, Geneva striping decoration, 15 jewels, straight line lever escapement, cut bimetallic compensation balance, blued steel flat balance spring, index regulator. Dial and movement signed.
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Diameter: 46 mm
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Signed: Longines  Swiss