Swiss gold hunting cased chronograph pocket watch Circa 1920

Gold hunting cased chronograph pocket watch
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A fine, 18 Carat yellow gold, hunting cased, anti magnétique keyless pocket watch. Longines Grand Prix Chronograph. Made by Longines Saint-Imier, Switzerland Circa 1920.
Four-body solid and demi bassine case with the front cover engraved inside with a dedication: Dino a zio Mario Pasqua 1952. Hinged gold cuvette engraved with Grand Prix and various Longines Grand Prix award medals.
White enamel dial with painted black Arabic numerals, outer minutes/seconds divisions and subsidiary dials for the seconds and 30 minutes registers. Gold Breguet hands.
Frosted gilt movement with monometallic balance, straight-line lever escapement, self-compensating Breguet balance spring and an index regulator.
Dial, case, cuvette and movement signed.
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Diameter: 52 mm
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Signed: Longines, Antimagnétique