Seikosha, C.1920-30s military watch with enamel dial in Nickeled case
This is a very rare & highly collectible timepiece made by Seikosha & signed Seiko, possibly for the Japanese military since it has the important 24hrs scale engraved onto the metal inner bezel. The oven baked white enamel dial is in pristine condition.
In those days, watches for men were about 30mm & sometimes even smaller like this. Especially for the Far East market where gents have smaller wrists.