The Vintage Wrist Watch Company has dated this piece to the 1930s.
The movement was made by Minerva for Services.
The Services Watch Company of Leicester, England was founded by Frank Liquorish in the 1920s. Services imported movements and bought in cases to be assembled and finished in their factory.

The movement is protected by an inner hinged cover which has light surface scratches and a small “ding”.
The watch measures 50mm diameter excluding the winding stem and the loop. Unusually for a Services watch, the case is silver and there are hallmarks inside the case backs for Birmingham 1928 with a case maker’s mark for the Birmingham based watch case maker Aaron Dennison, a prolific supplier of cases to various watch manufacturers.

The case is in lovely condition and the engine turned detail to the case back is still nice and crisp.
The dial is signed with the “Services” logo which was in use until the late 1930s. It also has the name Naval. Services produced a series of military inspired watches including Army, Air Man, Marine and Navigator. Many of these watches had German movements from Thiel Brothers so it is good that we have a Swiss example with a high grade Swiss movement.

Blued steel hands, a subsidiary seconds dial and an outer minute track. There is a hairline running from 10 to 12 but it is faint.
The watch glass has light marking but not too detrimental.
The watch comes in a new presentation box.
The Vintage Wrist Watch Company has dated this piece to the 1930s.
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