Add to the Smiths W10s here. This dates to 1970, the last year they were issued according to a few sources.
Been wearing this for the past couple of days after a long break. Forgot how well these still wear after 75 years with the 38mm case.
This watch in the collection I owned the longest got it when in the Navy used it for 20 years in the Navy then my civilian job working for parks and the tree crew for a city before I retired took a lot of abuse but still ticking jack at IWW did give it a tune up. Owned it since the early 1980's. When I was a hell of a lot younger. But you see the same Seiko on the wrist. Since it was used when I was in the military I guess you can consider it military.