English quarter repeating verge in silver pair cases Circa 1771

Silver quarter repeating verge pocket watch
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An English verge quarter repeating verge in silver pair cases circa 1771. Full plate fire gilt movement with dust cover. Pierced and engraved cock with diamond endstone, silver regulator disc. Fusee and chain with worm and wheel barrel set-up between the plates. Plain three-arm steel balance, blue steel spiral hairspring. Push pendant quarter repeating on a bell in the case. White enamel dial with Roman and Arabic numerals, later blue steel hands. Pierced and engraved silver inner case, silver push pendant and bow, maker’s mark HPO in a rectangle. Purpose made plain silver outer hallmarked Birmingham 1874.
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Diameter: 47 mm
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Signed: Graham London