J.P. A VIENNE. A PINK GOLD, BRASS AND ENAMEL WELSH HARP-FORM VERGE WATCH WITH CONCEALED DIAL

J.P. A VIENNE. A PINK GOLD, BRASS AND ENAMEL WELSH HARP-FORM VERGE WATCH WITH CONCEALED DIAL
Signed J.P. a Vienne, Case stamped JN, circa 1840

With hinged gilt brass verge movement, chain fusée, plain three arm balance, pierced and engraved cock, the white enamel dial with Roman numerals, blued steel Breguet hands, concealed within the body of a Welsh harp-form case, the sounding board of the instrument with star and crescent apertures revealing the movement and with two white enamel putti on blue guilloché enamel ground, the back decorated with eight petal-shaped panels of red guilloché enamel with white trim, four engraved with musical instruments, to the green enamel border, the neck with alternating bands of red, white and green enamel, movement signed
Overall length 69 mm.