Mike Wood
347
Sorry for my crappy pictures...
Minor differences in the dials: the 5512 (with chronometer-rated movement) has rare text arrangement on the dial, along with the minute track around the outside of the dial; the 5513 has the more conventional text layout and wording, and the traditional minute dashes.
All examples of the so-called "Explorer-dial" or 3-6-9 dial Submariner are considered to be very rare indeed, and it appears most (but not all!) were destined for the British market...
