Scant information from a Google, but this is a Wittnauer 11es calibre watch. 24h dial, with seconds on a railroad track round the outside - marked Swiss. Believe it to be original. Blued steel alpha hands, with very aged lume... 30mm plus crown - 17mm lugs. I bought this when I started collecting, and as lovely as it is, it's too small for my wrist. £125 net to me.
This one has an interesting seconds hand unlike any I've ever seen (or noticed) before; the way it's fatter in the middle... Best of luck in the sale!