Swiss silver double cased verge watch with alarm Circa 1690

Silver watch in exquisite quality with alarm
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An early double cased verge pocket watch in exquisite quality, with alarm, by a Swiss maker who was unknown until now, circa 1690. The case is silver, smooth, large lateral hinge, pierved and engraved. Dial is silver Champlevé dial, radial Roman hours, central sunk alarm disc with Arabic numerals, blued hand. Full plate movement, key wind, applied decorations, frosted, gilt, chain fusee, one hammer, one bell, florally engraved and pierced barrel for alarm, tulip pillars, ratchet wheel set up with blued steel spring, blued screws, verge escapement, three arm brass balance, engraved pierced balance cock and a silver regulator disc.
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Diameter: 57 mm
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Weight: 192 g
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Signed: Ris à Berne