English gold pair cased single hand verge with date Circa 1680

Open faced pair cased verge with single hand and date by Henricus Harpur
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A fine and early English gold open faced pair cased single hand keywound verge watch with date, circa 1680. Keywound verge movement, chain fusée. Gilt dial with Roman numerals on heart shaped cartouches, outer date ring and single hour hand. Plain inner case, fine gold filigree outer case. Movement signed.
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Diameter: 47 mm
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Signed: Henricus Harpur Londini