German gold verge watch with 8 day going train Circa 1790

A fine, extremely rare German verge pocket watch with 8 day going train, circa 1790. 18k rose gold case, smooth, engraved band. Dial is enamel, radial Roman hours, double serpentine hands. Full plate movement, keywind, frosted, gilt, signed, chain/fusee, blued screws, 2 teethed barrels in tandem arrangement for drive train on fusee via diagonal chain guiding device, three-arm brass balance, blued balance spring, fine florally engraved and pierced balance bridge, large silver regulator disc.
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