The Vintage Wrist Watch Company has dated this piece to the 1920s.
The movement is stamped Pinnacle, 7 jewels, Swiss made.

The watch measures 50.2 mm diameter excluding the winding stem and the loop. The gold plated case is stamped Star, 10 year, Dennison Watch Case Co Ltd. The case has light surface marks from use and a mild unevenness to the back but otherwise it is in nice condition.

The watch lens is plastic and is in nice condition.
The dial is signed Pinnacle with Swiss Made at the bottom. The dial is in nice condition with only the odd minor mark. It has its original blued steel Breguet style hands.
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