This is an extremely rare and desirable 1973 Rolex Oyster Perpetual Submariner ref. 5513 Milsub having the original ‘T’ dial with matching original hands all in an amazingly aged vanilla tone. The stainless steel case is all original with correct British-military markings and case back serial numbers inside. The serial number indicates a date of 1973. This watch was purchased from an elderly Canadian U.N. soldier who served in Britain during the mid 1980s. He purchased this watch for $350 then from the original British owner. The NATO strap is now installed over top of the fixed lugs, and we removed the steel bracelet to bring it back to a more correct configuration. As Milsub collectors know, these watches came in many variations, some with sword hands and others with Mercedes. We are most certain, based on the seller, that this configuration is completely original and correct to this fine and rare Milsub.