The Vintage Wrist Watch Company has dated this piece to the 1920s.
The watch has a seven jewel stem-winding movement which is working nicely.

Imperial Chemical Industries (ICI) incorporated the ammunition manufacturer Kynoch, which was initially known as George Kynoch & Co. in 1926. Kynoch became a key part of ICI's Metals Division, particularly its Birmingham site, and was involved in significant production of semi-fabricated non-ferrous metals, ammunition, and other products, especially during World War II. The Kynoch brand continued to be used for sporting cartridges within ICI.

The watch measures 50mm diameter excluding the winding crown and the loop. The case is silver and there are hallmarks inside both of the case backs for Birmingham 1928, together with a maker’s mark for the Birmingham case maker Aaron Dennison. The case is in good condition, just minor marking around the edge, nothing too serious at all.

The glass lens is in good condition, just a couple of small marks.
The dial is signed Langendorf. The Langendorf Watch Company produced watches in Langendorf, Switzerland for exactly a century, from 1873 until 1973. The dial is in very nice condition with original blued steel hands and a minute track with numbers picked out in red.
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