Every One of the traditional Sub hallmarks were current in ‘fifty three: the black, luminous dial; the rotating dive bezel; the matching steel bracelet; the screw-down crown. And yet. Watch nerds enjoy Christie’s This was mainly a ref. 6538 — it however showcased the 200m of water resistance, graduated bezel, https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/