English gold, agate, diamond set quarter repeater Circa 1770

Pair cased quarter repeating verge by B. Sidey
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A fine, rare and unusual English 18 carat gold, agate and diamond set pair cased quarter repeating verge watch, circa 1770. Full plate mechanical verge movement, chain fusée, quarter repeating on a bell, metal dust cap. White enamel dial with Roman numerals, outer Arabic five minute divisions, blued steel beetle and poker hands. Inner case with finely pierced and engraved scroll and floral decorated sides, repoussé, pierced and engraved scrol and floral decorated outer case, bezel set with small agate panels, back set with a diamond set floral decoration on translucent agate panel, repeating through the floral decorated pendant. Dust cap signed and numbered.
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Diameter: 40 mm
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Signed: B. Sidey London