French gold enamel pearl and diamond set verge watch Circa 1790

Unsigned gold keywind open faced pocket watch 
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A French gold, enamel, pearl and diamond set open faced keywind verge pocket watch, circa 1790. This watch features a gilded full plate movement with a verge escapement, a pierced and engraved balance cock with a sunburst foot, a fusee and chain, and is numbered 700. The white enamel dial features Roman numerals for hours, an outer minute track with Arabic numerals marking five minute intervals, a winding hole at 3 o’clock, and gold beetle and poker hands. The gold case has pearl set bezels on both sides and a diamond monogram LR on a dark blue guilloché background.
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Diameter: 44 mm
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Signed: No name
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The dial is in good condition with a few minor marks. The movement is running smoothly. The case is generally in good condition, with only minor scratches on the blue reverse enamel.