Swiss verge, enamel painting and visible balance Circa 1800

Verge pocket watch with enamel painting and visible balance
–
A rare gold 18k Swiss verge pocket watch with enamel painting and visible balance, circa 1800.
Gold case, rare and nice verge movement, full plate fire gilt movement, big regulator pointer on back, verge escapement.
Decentralized enamel dial surrounded by blue enamel, two  polychrome enamel painted cartouches and  visible balance, gilt hands.
–
Diameter: 57 mm
–
Weight: 57 g
–
Signed: Robert & Couvoisier
–
Robert et Couvoisier, Geneva Switzerland 1790-1800.
Robert et Couvoisier. Paris France C.1790-C.1800. Also Chaux de Fonds Switzerland 1805-1816.

In excellent condition.
–
Reference 0027000