Welcome to the board.
Paul Moser was a watchmaker company in Biel, Switzerland, in the first part of the 20th century. Moser also marketed his watches in Russia, (some of his watches were marked with his name in Russian characters), so I suppose your watch might well have been bought in Russia.
I think, but am not not certain, that the mark on the movement (like a temple) is the logo of Henri Levy, also in Biel.
It is an unusual dial and I like it very much.
Others may know more.
JTD