The Ref. 5512 from 1959 has nearly everything we'd seek out on The present Submariner. Its scenario experienced developed to 40mm, up from your 37mm to 38mm of before parts. Crown-guards were added, along with the bezel now marginally overhung the side of the case to make it much easier https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/