Case Round stainless steel case with crown guards, screw-down crown at 3 o'clock with embossed Rolex crown logo, drilled lugs, bi-directional friction-fit diving bezel with aluminum insert Bracelet Stainless steel oyster bracelet with female end-links, folding clasp with embossed Rolex crown logo Dial Matt black maxi-dial with tritium luminescent indices (T<25), signed 'Rolex Oyster Perpetual Date' and Rolex crown logo at 12 o'clock, signed 'Submariner 660ft=200m Superlative Chronometer Officially Certified' at 6 o'clock, 'mercedes' hands with luminous compound, date window at 3 o'clock with 'cyclops' magnifier Movement Automatic mechanical Rolex movement, functions: hours, minutes, seconds, date Cal. 1570 Ref. 1680 Movement No. D550*** Case No. 6191*** D= 40mm Year 1979
