The Ref. 5512 from 1959 has almost almost everything we'd try to find on The existing Submariner. Its circumstance experienced grown to 40mm, up through the 37mm to 38mm of previously parts. Crown-guards have been added, as well as the bezel now a little overhung the aspect of the situation https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/