English gold Canch Rococo pocket watch Circa 1750-1760

Gold open faced pocket watch with rosacea motif
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An English, key winding, gold open faced Louis XV pocket watch, circa 1750-1760. Round shaped 18 Carat yellow gold case, case back guilloché engine turned with a rosacea motif. Enamel dial with a gold motive center,  Roman radial hours, outer minutes track with Arabic five minutes numerals and gold Fleur-de-Lys hands. Full plate movement, gilded brass, with fusee and chain, verge escapement, monometallic balance (gilded brass) and blued steel flat hairspring.
Dial, case and movement signed.
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Diameter: 47 mm
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Signed: Canch