The Ref. 5512 from 1959 has pretty much almost everything we might try to look for on The present Submariner. Its circumstance experienced grown to 40mm, up within the 37mm to 38mm of before items. Crown-guards have been included, as well as the bezel now a bit overhung the facet https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/