The Ref. 5512 from 1959 has almost every little thing we would try to find on The existing Submariner. Its scenario had grown to 40mm, up from the 37mm to 38mm of previously items. Crown-guards had been added, and the bezel now a little overhung the aspect of the case https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/