The Ref. 5512 from 1959 has just about everything we would search for on The present Submariner. Its circumstance had developed to 40mm, up from your 37mm to 38mm of before pieces. Crown-guards have been added, along with the bezel now a little bit overhung the facet of the situation https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/