English silver enamel watch with repoussé decoration Circa 1781

Pair-cased verge pocket watch by J.Tarts
–
An English pair-cased silver enamel verge pocket watch with repoussé decoration, circa 1781.
Full plate movement, keywind, fire gilt, chain/fusee, square baluster pillars, three-arm steel balance, florally engraved and pierced balance bridge, and signed on the back plate: J Tarts LONDON. Enamel dial with Roman radial hours, arcaded minute ring, and decorative gilt hands. Two cases: a silver outer case, the backside in high relief, in the centre a polychrome enamel painted scene, and a large lateral hinge; and a silver polished inner case.
–
Diameter: 54 mm
–
Signed: J.Tarts London
–
Watchmaker: J. Tarts (active 1755–90)
–
Marking:
[1] Leopard’s head crowned (London Assay office mark);
[2] f (London date letter for 1781–82);
[3] Lion passant (English quality mark for sterling);
[4] V B;
[5] tiny indecipherable mark
Location of marks: All marks struck inside the back of the inner case.