Rolex

nickel lever movement (cal.1520), 26 jewels, free-sprung mono-metallic compensation balance, black dial, luminous arabic, baton and triangular numerals, luminescent hands, centre seconds, Oyster case with screw-down case back and crown with protective shoulders, black rotating calibrated bezel, case, dial and movement signed.

This wristwatch features the rare 'Explorer' style dial with combination arabic/baton numerals. During the 1960s and 1970s, the references 5512 and 5513 were fitted with the Submariner baton/dot numeral dial as standard. However, it was possible in the period to purchase these references with an optional arabic/baton numeral dial. 'Explorer' dialled versions are rare and favoured by collectors for their combination of the classic Submariner case with the striking styling of the ever popular 'Explorer' dial. For further information regarding Submariners, see Skeet & Urul, Vintage Rolex Sports Models, 2002, pp.20-46.