Most Of the typical Sub hallmarks were being current in ‘fifty three: the black, luminous dial; the rotating dive bezel; the matching steel bracelet; the screw-down crown. And nevertheless. Watch nerds love 3035 provided a quickset day wheel, while the reference is considered a “transitional” watch for the subsequent cause: https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/