The most covert of Rolex's special forces editions, this Submariner Date was one of only 40 pieces made especially for Northern Irelands elite HMSU police unit. Even amongst the worlds top collectors, there are very few people that are aware of its existence due to its extremely limited numbers and exceedingly specialist provenance. Engraved by Rolex and delivered to the HMSU officers through the correct Authorised Retailer in Northern Ireland, this 16610 Sub Date is in perfect unworn condition and complete with original Rolex box, warranty card, tags and booklets.