As the first watch from Rolex to include the day of the week written in full and along with the date, the Day-Date is an iconic reference that was made in production since 1956. The present example reference 18368 belongs to part of the later example of the collection which it houses a more fascinating movement that allows the quick setting of the day and date which the 1803 could not.  Sporting a versatile 36 mm with a rare baguette-cut diamond bezel that Rolex no longer fashion, the present watch represents the pinnacle of modern design and as well as watch making.