5513/7 Double Reference Rolex Royal Navy Milsub

Rolex-Royal-Navy-Milsub-5513-5517-Double-Reference

The 5517 is a very rare 5513-derived British Royal Navy Submariner variant. There exist true milsubs which are stamped both as either 5513 or 5517. However, there are few watches which slipped through the Swiss cracks with two references engraved. Much like the 6536/8 is the rarest case engraving of the big crown era, the…

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