The Vintage Wrist Watch Company has dated this piece to the 1910s.
The watch has a signed Omega stem-winding movement which is working nicely.
There is a scratch across this inner cover.

The watch measures 51mm diameter excluding the winding stem and the loop. The case is silver… there is a tiny part hallmark inside the case back, probably Scandinavian, and we have double checked by testing with solution and it has come back as silver. The inside of both outer covers has the early Omega logo. The case is in good condition, just a bruise to the side and a gentle indentation to the back. Engine turned detail to both front and back. The front has a handsome cartouche with the name of the original owner, difficult to read but looks like Nils Krirvak 1917.

The winding crown pushes in to release the front cover.
Inside, there is an acrylic lens which is in good condition.
The signed dial looks good to the naked eye. If you look very closely, there is a scratch running through numbers 2 and 3.
The watch comes in a new presentation box.
The Vintage Wrist Watch Company has dated this piece to the 1910s.
Specialists in antique and vintage wrist watches and pocket watches
You can view the stock and full dealer information on the The Vintage Wrist Watch Company Profile Page