English repeating Repoussé verge pocket watch Circa 1720

Gold open faced double cased watch by Andrew Dunlop
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A very fine and rare  English 22 carat gold repoussé repeating pair cased pocket watch, circa 1720. Gilt full plate verge movement with central pierced and engraved balance cock with steel 3-arm balance, silvered regulation, two polished hammers striking on an internal bell.
Finely engraved champlevé gold dial with Roman chapter and outer five-minute Arabic numerals, signed in the centre Dunlop, London, steel-shaped hands.
Inner engraved case with pierced sound frets, push repeat activated via the engraved pusher, finely engraved outer case stamped I.W. for the case maker John Ward of Boars Head Court, Fleet Street, London with pierced and engraved foliate design and four profiles in relief, heavy squared hinge, dial and movement signed.
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Diameter: 55 mm
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Signed: Andrew Dunlop
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Andrew Dunlop is recorded as working between 1701 and 1732. He was the maker in 1716 of the turret clock for Hawkley House, Blackwater, and is also known as a maker of watches and long-case clocks. Conyers Dunlop was apprenticed to him in 1725.