The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a good quality 15-jewel (3 adjustments) stem-winding movement which is working nicely. The movement is fully signed and it has the serial number 4,288,767 which dates it back to 1925. The movement is protected by an inner hinged cover.

The watch measures 50mm diameter excluding the winding stem and the loop. The case is 935 silver and the inner cover is signed with the Longines name. The case also carries the same number as the movement.
There is also a vivid blue logo on the back, and it is also signed Saurer. There is an old repair to the blue area.

Adolph Saurer AG was a Swiss manufacturer of heavy trucks, buses and aero machines, active between 1903 and 1982. Their vehicles were widely used across mainland Europe, particularly in the interwar period.

The glass lens has a couple of small marks but not too detrimental.
The signed dial is in lovely condition with original blued steel hands, a subsidiary seconds dial and outer minute markers with 24 hour numbers.
The watch comes in a new presentation box.
The Vintage Wrist Watch Company has dated this piece to the 1920s.
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