English lever watch in a gold half hunter case Circa 1922

Gold half hunter watch
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An English lever in gold half hunter case, hallmarked London circa 1922. Gilt three-quarter plate keyless movement with going barrel. Plain cock with polished steel regulator, compensation balance with blue steel spiral hairspring. English table roller lever escapement. Signed white enamel dial with subsidiary seconds, Roman numerals, and blue steel hands. Plain 9 carat half hunter case with blue enamel chapter ring. Maker’s mark ‘JWB Ltd’ in a rectangle and number corresponding to that on the movement.
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Diameter: 49 mm
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Signed: J.W. Benson Ludgate Hill London Best London Make To H.M. the Queen