Attractive gold and enamel lever with chatelaine Circa 1770

An attractive English 18K gold and enamel key wind open faced pocket watch with matching chatelaine and rock crystal glass, circa 1770. Gilt full plate English lever movement secured in place by 2 screws, pierced and engraved balance cock, 3 arm balance. White enamel dial, black Roman numerals, black outer minute divisions, winding aperture at 3, regulation through the dial, gilt beetle and poker hands. Case with blue enamel decoration to reverse with light blue and white geometric bezel, faceted rock crystal glass. Movement signed. Accompanied by matching white, dark and light blue enamel chatelaine with enamel decorated key and fobs.
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Diameter: 45 mm
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Signed: William Post London Bridge