The Ref. 5512 from 1959 has almost everything we'd try to look for on the current Submariner. Its situation had grown to 40mm, up from your 37mm to 38mm of earlier parts. Crown-guards were extra, and also the bezel now slightly overhung the facet of the situation to make it https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/