Dated London and q. This watch is really of the highest quality. The case is 3 part hinged and in great condition just look at the hinges. The movement is very fine and from the research I have done over the years would say its a Vacheron. But we just cant be sure of this as its not signed anywhere. What we can be sure of it was origionally made as a wristwatch and is not a conversion. Its stunning, its running well, its in great condition, buy it.