The Vintage Wrist Watch Company has dated this piece to the 1930s.
Thommen started to build lever movements with the aim of developing a manufacturing process whereby the components were interchangeable. Upon his father's death, Alphonse Thommen took over the business and by 1890, the factory was producing 13,000 watches per year. By 1929 Thommen had registered the brand name Vertex specifically to market the watches in the UK.

This particular watch has a Swiss 15-jewel hand-winding movement which is working nicely. The movement is signed and it is all protected by an inner hinged cover.
The watch itself measures 50mm diameter excluding the winding stem and the loop. The case is gold plated and was made in England by the Dennison Watch Case Company. The case is in good condition with just light surface marks and a slight hint of unevenness to the front cover. The inside of the back cover has some marking.

The winding crown pushes in to open the front cover. Inside there is an acrylic lens which is in good condition… original glass lenses are often replaced with acrylic as it is much more durable and looks so similar.

The dial looks good to the naked eye. If viewed closely, there are a couple of short faint hairlines towards the edge, but not too detrimental at all. Blued steel hands, a subsidiary seconds dial and an outer minute track. The dial is signed with the name Scanlan, Preston, the original retailer of the watch.
The watch will be sent in a new presentation box.
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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