Swiss gold watch with polychrome enamel painted scene Circa 1790

Pocket watch by J. Coulin & Amy Bry
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A small Swiss 18 carat yellow gold and enamel open faced keywind pocket watch, circa 1790. This watch features a keywind movement with a verge escapement, a hidden spiral, and a fusee and chain. The plate is signed and numbered. The white enamelled signed dial displays Roman numeral hour markers, an outer minutes track with Arabic numerals for five minute intervals, and silver hands. The 18 carat gold case boasts a front bezel set with faceted white stones. The back cover showcases a polychrome enamelled painted decoration depicting a harbour scene with boats and people. The caseband is enhanced by chased interlacing friezes. The case back is marked CH.B.
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Diameter: 37 mm
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Weight: 38.6 g
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Signed: Jaq. Coulin & Amy Bry
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Jacques Coulin & Amy Bry à Genève was a watchmaking company with three business partners: Jacques Coulin, Amy Bry, and Jean Flournoy. The company operated from approximately 1780 to 1799. The watches were signed Jacques Coulin & Amy Bry, Amy Bry & Coulin, and occasionally Coulin, Amy Bry et Flournoy. Jacques Coulin travelled for the company in Italy, Spain, and North America.