Swiss verge watch with polychrome enamel painted scene Circa 1790

Unsigned gold, enamel open faced pocket watch
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A Swiss gold, enamel and pearl set open faced keywind verge pocket watch circa 1790. The watch features a gilded verge movement with a pierced and engraved balance bridge, numbered 5677. It has a white enamel dial adorned with Arabic numerals and an outer minutes track that includes Arabic numerals for every fifteen minutes. The winding square is positioned at 2 o’clock, complemented by filigree hands.  The gold case displays a finely painted polychrome enamel scene on the back, depicting a love altar with two classically dressed ladies flanking a putto holding a garland crown. This is set against a translucent blue enamel background over engine turning. The scene is further enhanced by adding seed pearls and rose cut diamonds; the bezels, also set with seed pearls, are numbered 567 on the stem.
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Diameter: 50 mm
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Signed: No name
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Dial in good order. The case has no losses or cracks, and the pearls and diamonds are intact. However, the watch will not wind and may require a service. The balance is free, though.