Fusee lever with silver dial in silver open face case Circa 1889

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A large English fusee lever with silver dial in a silver open-faced case, hallmarked Chester circa 1889. Full plate gilt keywind fusee movement with signed and numbered dust cover. Harrison’s maintaining power. Engraved cock with garnet endstone, polished steel regulator with silver sector index. Compensation balance with blue steel spiral hairspring. English table roller lever escapement. Signed and numbered engine turned and engraved silver dial, subsidiary seconds, applied gold Roman numerals, blue steel hands. Substantial silver open face case profusely chased and engraved an applied gold garter on the back cover. Maker’s mark ‘JH’ in a rectangle and number corresponding to that on the movement.
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Diameter: 56 mm
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Signed: John Forrest London E.C. Chronometer Makers to the Admiralty