Swiss skeletonized quarter repeating jacquemart Circa 1790

Gold skeletonized quarter repeating watch with jacquemart automata 
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A Swiss yellow gold skeletonized quarter repeating open-faced watch with jacquemart automata, circa 1790, gilt full plate with cylindrical pillars, fusee and chain, verge escapement, plain three-arm balance, pierced and engraved balance bridge, two hammers quarter repeating on two gongs, gilt cuvette.
White enamel chapter ring, Breguet numerals, skeletonized center surmounted by a three-colour gold automata scene depicting two jaquemart, yellow gold case, a slide to the milled band for locking the repeating system, case numbered.
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Diameter: 56 mm
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Signed: No name