I have a 1968 one owner Father/son watch with original box, tags (with serial # still visable), and double booklets about 1680's from that period. It is on the original 9315 bracelet (11 links) with divers extention, and receipt, and picture taken after service by authotized dealer in St Petersburg Fl. Watch is 100% original with only the crystal, crown, and crown tube changed at the service in 2000. The watch has not been open since the service but a 263xxx serial number puts it around that date of 1968. Dial is MK IV, and matches the hands like it should. Sell for 9875.00 USD + freight or interesting Rolex trades