The Ref. 5512 from 1959 has pretty much everything we'd try to find on the current Submariner. Its circumstance had grown to 40mm, up with the 37mm to 38mm of earlier items. Crown-guards were included, along with the bezel now somewhat overhung the side of the case to really make https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/