This pen, as with most modern M6XX series, is 13.4cm in length, with a diameter of 12.4mm, weighing 16.4g (Source). It's a piston-filler, which means it has relatively high ink capacity, and also that filling the pen is quick and simple. One operates the piston by turning the black knob and the back end. Counter-clockwise to push the piston, clockwise to pull. The barrel of this particular pen is translucent, so one can easily see the ink level if one holds it up to the light. Unlike the M600's which have 14c gold nibs, all M620's have 18c gold nibs. This one has a fine point. Pelikan's nibs are among the best...most of the time.
Pelikan has been a little sketchy on quality control lately. Either that or more people have been reporting problems with Pelikan nibs. For example, this pen wrote well (well enough for most people) out of the box. I still felt it was too toothy. I examined it, and found that the tines were slightly misaligned. The feed, also, was out of alignment with the nib. I sent the pen to Chartpak (cheers!) and it came back much better. The nib now writes as smooth as my Waterman Phileas, moderately wet, and slightly soft.
Something very nice about the Souverän series is that All modern M2XX, M4XX, and M6XX nibs are interchangeable. If one desired, one could have many nibs and many barrels of different dimensions, and mix and match them as one sees fit.
Here is a writing sample using a mixture (I don't know what ratio) of Private Reserve American Blue and Private Reserve Tanzanite:
Like I said before, Pelikan has been a bit blah on quality control. Even though it doesn't affect writing performance, some might be bothered that the engraving on some of the nibs are off-center. See pic below. (The purple stuff is residual ink.)
(Click on thumbnail to enlarge.)
The rest of the pen, though, seems flawless. The barrel and cap are of a translucent celluloid of mostly blue, and black, with some white, and gold parts. There are some iridescence some places and some shimmering bits in other places. There is no way I can reproduce the pen faithfully without video or something, but here's an image of the pen below. Still, I suggest that you see the pen in person to get an accurate idea of its beauty.
(Click thumbnail to enlarge. 56k warning.)
I guess I should have paid more attention to dust.
Edited by Renzhe, 04 April 2007 - 21:11.