Swiss 18K gold, enamel and pearl set cylinder watch Circa 1780

Gold, enamel and pearl-set open faced watch by Breguet
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A Swiss 18 carat gold, enamel and pearl set open faced cylinder pocket watch, circa 1780. Gilt full plate movement, cylinder escapement, back plate cut out to accommodate standing barrel and framed with a screwed-down bridge. White enamel dial with painted Arabic hours. The case back with translucent dark blue enamel over engine turned ground, painted neoclassical figures en grisaille, pearl set bezels on both sides.
Dial signed.
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Diameter: 51 mm
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Signed: Breguet A Paris
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A grisaille (en grisaille), or grey painting, is a painting in which one does not apply natural colours but restricts oneself to depicting things in all possible shades of the same colour, usually grey or brown.