Beautiful example of the rare and highly sought after 5512 Chronometer Certified Rolex Submariner MAXI dial. 5,41X,XXX serial #, dating its manufacture to 1978. Very clean original dial and matching original hands set. (Minor loss of tritium on the 6th and 12th indexes). Stunning fat case, professionally detailed, retaining thick lugs and beveled edges. Beautiful original fat font bezel insert showing very light wear, turned to a light blueish fading. Matching Rolex Oyster bracelet reference 93150-580, (W Clasp Code). Serviced, timed and waterproof.