Shown this way, the back and silver look really attractive when arranged side-by-side. Though I definitely prefer black. The condition of both is of the highest quality.

In theory, it has also been said the SOLO dial was Ref.6238/6239, but the basic Ref.6240 was placed on the current market. Of course, if it is Ref.6240 is not reason alone to mark as SOLO giving it a good serial number. Looking for one is really difficult and requires a great amount of skill. The MK0 pusher is also really tough to locate as well.

Therefore, that is why when looking at the real thing it is easy to imagine the difficulties that lead to its final form, and why it packs such a punch.