Currently not working, the chain is broken. It’s going to need a repair to get going and is sold as is. The sterling silver case is hallmarked London with date letter D for 1799. The outer case is 56.7mm in diameter, the inner case is 47.8mm in diameter. The original dial has a few cracks, fitted with original bullseye glass. The movement is signed Rob’t Clench DUBLIN 8773 Inside the case were 2 New York watchmakers advertising papers, see photo’s. Sold with no key.