English silver half quarter repeating pocket watch Circa 1748

Rare pair cased open faced silver pocket watch 
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A gentleman’s rare pair cased half quarter repeating pocket watch produced by one of the most important watchmakers, circa 1748.
Silver case, pierced and engraved border, foliate, volute and shell decor, large lateral hinge, foliate decor and mascarons. Dial is silver, Champlevé, radial Roman hours, signed, blued steel “Poker & Beetle” hands. Full plate movement, keywind, regilt, applied engraved and orally pierced decora- tions, chain/fusee, 2 hammers, 1 bell, moulded movement pillars, signed protective cap, cylinder escapement with steel cylinder wheel, three-arm steel balance, blued balance spring, very nely orally engraved, pierced balance cock with mascaron, large chatoned diamond endstone.
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Diameter: 49 mm
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Weight: 120 g
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Signed: George Graham London