The Vintage Wrist Watch Company has dated this piece to the 1950s.
The watch has an automatic Fontomatic Patent movement (the rotor with peripheral gear out runs on a circular rail at the movement edge - as with many vintage automatic watches, you can hear the rotor moving around), FHF 65.
This particular watch is ticking away nicely and the time keeping is good to within around two minutes over 24 hours. The automatic mechanism within the movement is a later replacement but of the correct calibre so an honest repair which appears to have been carried out a long time ago.

The watch measures 33mm diameter excluding the winding crown and the lugs. The case is gold plated and there are some minor marks but overall the condition is pleasing for a 1950s piece. The case back is stainless steel; it has a couple of scratches. The back states that the watch is waterproof but, as with any vintage watch, I would not rely on this still being the case.

The lens is in lovely condition.
The dial is signed Allaine, 30 Jewels, Automatic, Incabloc, Swiss Made. Original dauphine shaped hands, centre seconds hand and outer minute markers.
A new brown leather strap has been fitted.
The Vintage Wrist Watch Company has dated this piece to the 1950s.
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