A late 19th/early 20th century century gold, diamond and sapphire pendant watch

A late 19th/early 20th century century gold, diamond and sapphire pendant watch
The circular white enamelled dial with Roman numerals within an old brilliant-cut diamond and alternately set sapphire bezel, unsigned cylinder movement, suspended from a sapphire and old brilliant-cut diamond bar brooch with bar link connections, circa 1900