The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a seven jewel Equity grade stem-winding movement which is working nicely.
The movement is protected by an inner hinged cover.

The watch measures 52mm diameter excluding the winding stem and the loop. The case is silver and there are hallmarks inside the three covers for Birmingham 1920 together with a case maker’s mark for Aaron Dennison. The Dennison Watch Case Company supplied most of the cases for Waltham UK.

There is a slight discrepancy between the dates of the movement and the case but this is a perfectly plausible considering it was produced at the end of WW1.
The case has engine turned detail to both the front and back, a slight hint of unevenness but overall good condition. The front cover has a small central lens surrounded by blue enamel filled Roman numerals.

The winding crown pushes in to open the front cover.
Inside, there is an acrylic lens which has minor marking across it, not overly noticeable to the naked eye.
The signed dial looks good to the naked eye… there is a faint hairline starting between 11 and 12 but it is difficult to see. Original blued steel hands including the special half hunter hour hand so that the time can be read when the front cover is closed.
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