This vintage Swiss Huguenin pendant ball guilloche enamel watch is in working order and keeps time well. I believe that the metal on watch is sterling, there is a hallmark on the attached ring, it tests for silver. The chain is marked Amerikana Metal (not silver, gold tone). No damage to the enamel, no cracks or chips. The ball watch is 2 cm diameter. The chain drop is 14 inches so 28 inches around. I believe it is all original but if there has been any prior replacement parts, I am un...aware. Please feel free to ask me questions.