French early three colour gold cylinder pocket watch Circa 1775

Fine pocket watch with a beautiful relief case
–
A very fine early three-colour gold cylinder watch pocket watch, made by the Royal Watchmaker Jean-Pierre Gregson in Paris, France, circa 1775. It has a very beautiful 18 Carat gold relief case which is worked in three gold colours, a very rare enamel dial with red hour digits and extremely beautiful hands and a movement with a cylinder escapement.
Dial and movement signed.
–
Diameter: 41 mm
–
Weight: 50 g
–
Signed: Gregson, Hger du Roy, à Paris