The Vintage Wrist Watch Company has dated this piece to the 1940s.
The watch has a Swiss 16-jewel hand-winding movement which is working nicely.
The watch measures 20mm wide excluding the winding crown, and 28mm high excluding the lugs. The case is stainless steel and it is in super condition.
There is some natural light reflection showing in the photos.

The signed dial is in its super original condition with original original blued steel hands, a subsidiary seconds dial and outer minute track. The Mulfi name was first registered by Henri Müller & Fils in 1938.
The watch has its original strap and original Mulfi swing ticket.
The watch comes in a new presentation box.
The Vintage Wrist Watch Company has dated this piece to the 1940s.
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