Early English silver chronometer pocket watch Circa 1861

Rare silver open faced watch 
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A rare, early English pocket chronometer by Victor Kullberg, London circa 1861. A silver case with gold hinges, maker’s mark HH, extremely rare Kullberg caliber with special lever escapement and large chronometer balance, screwed gold chatons, diamond endstone, chain/fusee, case, movement and dial matching number, signed enamel dial in perfect condition, blued steel hands.
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Diameter: 52 mm
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Weight: 111 g
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Signed: Victor Kullberg  London
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Case with flat dent