Quote:
Originally Posted by SOG DIVER
An excellent source.
The 5512 Submariner had its entrance about 1959, and was seen with COSC
chronometer certification after the 5513 was issued. Many 5512 case backs are stamped 5513. Many parts were interchangeable on the two references.
Reference Points: the Submariner by Hodinkee and Eric Wind point out many of these subtle differences. But, as with all things Rolex-there are exceptions.
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The 1959-- 5512 Submariner was the first to feature crown guards- initially
in blocked ends, then pointed (PCG) form, finally closely shaped in the crown guard style we see today. The 5512 reference initially appeared from 1959-through roughly 1963 with gilt dial and minute track or chapter ring. That minute track/chapter ring was discontinued during the mid-1960s. The non-date 5512 with chapter ring/gilt dial and COSC chronometer certification is unique watch, especially with the caliber 1560 movement and gilt dial.
1959-1979: Twenty years of the 5512 Submariner.
Having owned a 1969 red 1680 Submariner along with this same 1960
5512 Submariner: I have been fortunate indeed to discover both of these iconic watches and to own them.
{For an in-depth look at dials,crown guards, hands, and inserts of early Submariners...see the site : RolexHaven }