Perhaps the best Date-Submariner, the 1680 has become one of the most sought after sport watches of its era. As you can see from the buildup, this outstanding example has been enjoyed and well loved without being jeopardized by over-cleaning or polishing. Of course, the crud can be steam cleaned upon request by the new owner, but we wanted to leave the watch as-is to show the honest nature of this wonderful example. This watch features a 6.15 million serial number.