Rolex Submariner Date 1680 Libyan MilSub Mk1 Dial Ghost InsertOne of the rarest MilSubs We are delighted to be offering one of only a few known examples of the Libyan MilSub 1680. Military Submariners are some of the most keenly sought after watches and this is one of the rarest , as we only have seen less then a handful.. The case remains in really strong condition and importantly, the inside has the full serial number engraved in the correct accepted fonts. This was done by Rolex in Geneva for special order