The Ref. 5512 from 1959 has just about all the things we would seek out on the current Submariner. Its case experienced developed to 40mm, up within the 37mm to 38mm of earlier pieces. Crown-guards ended up additional, plus the bezel now a bit overhung the aspect of the situation https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/