Fine and rare English silver pair cased alarm watch Circa 1720

A fine and rare English silver pair cased alarm watch, circa 1720. Engraved gilt full plate movement, plain steel three armed balance, verge escapement, pierced and engraved winged balance cock, silver regulation, Egyptian pillars. Silver champlevé dial with black infilled Roman numerals, inner half hour and quarter hour markers, gilt rim, central alarm disc with infilled black Arabic numerals with blued steel marker, single blued steel hour hand and winding holes for going alarm. Engraved and pierced inner case, pierced and engraved square hinged outer with five knuckles.
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Diameter: 57 mm
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Signed: Edward Banger London
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Edward Banger (1668 – 1720) was apprenticed to Thomas Tompion in 1687 and became free of the Clockmakers Company in 1695. Tompion and Banger worked together between circa 1701 and 1708, when the partnership was abruptly (and somewhat mysteriously) terminated. Banger produced extremely few pocket watches under his own name, only three are still known to exist.