Devonshire Antiques has dated this 1920s Gold Waltham Watch to the 1920s.
The case is fully hallmarked inside with English hallmarks confirming 18ct gold. Both the movement and dial are stamped Waltham USA.

Details:
Antique 1920s men’s wristwatch
Solid 18ct gold Dennison case
Full English hallmarks inside the case
Waltham USA movement and dial
Screw-off bezel and hinged movement
Black material strap
Currently in working order

Total weight: 33.9g
Box not included
Measurements shown in photos
About Dennison
Dennison was a respected British watch-case manufacturer based in Birmingham, England. The company supplied cases for movements made by American watchmakers, including Waltham, bringing together British case-making craftsmanship and American watchmaking.

An interesting example of an early 20th-century wristwatch, suitable for collectors of antique watches and vintage horology.
Please study all photographs carefully, as they form part of the description. The case shows surface wear consistent with age and use.
Devonshire Antiques has dated this 1920s Gold Waltham Watch to the 1920s.
You can view the stock and full dealer information on the Devonshire Antiques Profile Page