How many watches does it take to make an ink pen?
Sounds like the opener to a racial joke against watches!
Seriously, that pen is a work of art. Looks to me like each gear was painstakingly set and lots of fancy bending and manipulating of parts. I have seen several watch pens but i don't think i have ever seen one with this many parts in it. How many parts are in there? absolutely stunning. There are tiny parts inside the cogs and gears for crying out loud. The fit and finish are perfect as well.
My ONLY critique would be to cast a custom finial with a gear in it, and maybe a center band with some parts inside, Or maybe, just maybe, you could be so lucky as to find a gear that you could replace the accent ring on the CB with. If you did that, this pen would be over the top. On further thought, If you could accent the clip with a minute hand, or make/have made a custom clip shaped like a minute hand! Oh man... that would be the bees knees!
Even without modded finial and CB, I don't think you will have any problems getting into the art show! Congrats on a masterpiece!