Dutch verge pocket watch in 22k gold pair cases Circa 1763

Gold verge pocket watch in pair cases
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A Dutch 22 carat gold verge in pair cases, circa 1763. Full plate fire gilt movement, square baluster pillars, pierced and engraved bridge cock, pierced and engraved foot and plate for the silver regulator disc, fusee and chain with worm and wheel barrel set-up between the plates, plain three-arm steel balance, blue steel spiral hairspring.
White enamel dial, black Roman and Arabic numerals, decorative gilt hands. Plain inner and outer case. Winding through the back. Copper bow.
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Diameter: 48 mm
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Weight: 98 g
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Signed: Willem Jan Bramer
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Willem Jan Bramer, born 1714, died 1765 in Amsterdam. Son of Gerrit Bramer, with whom he was associated. The father survived him for another 5 years and then ran the business alone. The business was initially located on the Rokin Amsterdam but moved to Kalverstraat Amsterdam in 1760.

Chip at 6 o’clock.