Gold-plated single-needle onion watch, hinged case with hammered decoration on the back, gilt and chased dial with enamel cartouches called "rond de bosse" with Roman numerals for the hours and Arabic for the minutes, opening for the winding square, mechanical movement with key winding, chased and pierced cock with pendulum, verge escapement, signature on the plate DUPRÉ in Paris. Sold as is with no guarantee of function. Late 17th century. Diameter 58.5 mm