I don't know if this will help, but I have two standard issue watches. One is Longines, and the other Seiko. The Seiko has fallen nearly three hundred meters, and still keeps good time, despite visible scars. The Longines watch is beautiful, but is moody, to say the least. It's forty years old, I think!
Both were standard issue for the RAF, Seiko for the Marines also, but years ago.