English 18K gold open faced lever pocket watch Circa 1876

Unsigned gold pocket watch 
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An English 18K gold beautiful chased and engraved pocket watch with open face and Hallmarks, circa 1876.
3/4 plate movement, frosted gilt, screwed chatons, screw compensation balance, and lever escapement. Enamel dial (fine hairline cracks) with Roman radial hours, outer minutes track, and blued steel pear hands. Splendidly chased and engraved 18K gold case with cartouche, Hallmarks Birmingham 1876, and work number 94019.
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Diameter: 40 mm
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Weight: 46 g
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Signed: No name