Picked this one up today. Dial is marked A.D. Wilson New York. The movement which I can't identify the maker is also marked A.D. Wilson
1307 B'Way, New York. Does anyone know who the movement maker is and if A.D. Wilson was a jeweler?

movement

Movement scan

Judging from that regulator, I would suggest your watch is of Swiss origin. I have seen a Patek Phillipe regulator that looks very similar yours except the plate design is different. See following picture. Zenith also produced somewhat similar regulators on some models; there may be other makers who once used what looks like a sort of 'Snail' regulator. Is your watch somewhat equivalent to an American size 6 or maybe 10?
Mike

Regulator on a Patek Phillipe that is similar to yous, Ernest.

A.D. Wilson was Alexander Wilson a jeweler, the below image is from the Nov 23, 1885 NY Times.

Tom

I have seen those regulators on several other Swiss, one is Longines, Gruen, Omega.

Tom

ps. I like the watch too Ernest!

Thanks everyone for your ideas on this piece.
The watch is about a American 16-18 size. Tom, a very funny incident. Thanks.

I wonder if there is a makers mark under the dial?

Tom