The Ref. 5512 from 1959 has pretty much anything we might try to look for on The existing Submariner. Its scenario had grown to 40mm, up within the 37mm to 38mm of earlier parts. Crown-guards were being included, and the bezel now somewhat overhung the side of the situation to https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/