The Ref. 5512 from 1959 has just about every little thing we'd try to look for on The present Submariner. Its case had grown to 40mm, up with the 37mm to 38mm of earlier parts. Crown-guards had been extra, along with the bezel now a little bit overhung the aspect https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/