Harry Winston ←
In my opinion, this is the single most important watch of the modern era. Not only did it play a pivotal role in the rise of both MB&F and URWERK, but if you look at the watches that came before it and those which came after, it clearly influenced the entire sphere of contemporary horology.
This is the platinum piece. LE of 45. It was factory serviced in 2012 and has barely been worn since. Comes with original box and service papers.