English 18k gold lever watch with center seconds Circa 1900

Gold half hunting cased center seconds lever
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An English 18-carat gold half hunting cased center seconds lever pocket watch, Hallmarked Birmingham 1900. Gilt three-quarter plate keyless movement with going barrel, plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring, English table roller lever escapement. White enamel dial with Roman numerals, center seconds, and blued steel center seconds hand and gilt half hunter hands. Substantial plain case with blue enamel chapter ring, slide in the band to stop the watch. Maker’s mark JR in a diamond.
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Diameter: 53 mm
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Signed: No name