English 18K gold and enamel watch with chatelaine Circa 1750

Gold verge with matching chatelaine by John Cowell
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An English gold and enamel key wind verge watch of museum quality with matching gold and enamel Royal Blue chatelaine, circa 1724-1775.
Signed and numbered, full plated verge movement, fine quality, gilt, pierced and engraved balance cock, silver regulation disc, diamond endstone. Magnificently decorated enamel dial with Arabic radial hours, outer minutes track and golden snake hands. 18K gold case of fantastic quality, dark blue and white enamel, case maker’s mark IT. Matching original chatelaine, similar dark blue and white enamelled.
Four pendants: 1. Gold signet pendant with carnelian intaglio; 2. Blue enamelled signet pendant with lapis lazuli and Oriental pearl setting; 3. Very rare gold key in the shape of a pavilion; 4. Gold poison compartment in the form of a nut.
The chatelaine is exceptionally crafted. The front is gold enamel of the finest quality, but the back is solidly gilt and worked in metal.
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Diameter: 45 mm
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Weight: 85 g
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Signed: John Cowell, Royal Exchange London