I guess to me, a pen's a pen. How much technology can go into making one fountain pen $200 better than another one? Unless it's just gold plating and diamonds on it.
With a watch there are obvious differences such as GMT function, chronograph, day, date, rotatable bezel, tachymetre, luminosity etc
I can't think what else a fountain pen can do but write.
Confused - sorry it's been another 13 hour plus day.