I saw the M800 brown-black in person at the Philly Pen Show last weekend. What a gorgeous pen! I'm partial to the tortoises, so it was no big surprise that I loved the color scheme.
I picked it up and confirmed once again that, alas, the M800 is not the right size for me. I'll have to wait and hope that the brown-black will appear in an M600 some day.
Thanks for the post. I have also become a fan of the Brown Black Sourverän and think it would be nice to see it in other models.
I bought a brown-black M800 as my first M8xx pen, pretty much for the color. I find its warm tones rather attractive. On the other hand, I am also not 100% convinced about the size/weight of the M800. I too, would like to see this pen in an M600 (and for similar reasons, I am sure there are folks who would like to see it in an M400).
From the videos I have seen, it looks like the brown-black stripe material is a similar cellulose-acetate that Pelikan uses in their other striped Souveräns, and the pens seem to run on the same equipment (at least the video tour of Pelikan that Joost Appelboom published on his store site shows the equipment running brown-black binde material on the standard production equipment), so I suppose the appearance of a brown-black in other models would not depend on anything technical, but rather on the confidence of Pelikan that those models would meet sales goals in the long run. I suppose available production capacity also plays a role in when particular models are introduced and whether or not they are going to be "permanent" additions to the product line.
I have seen a lot of cynical comments about so-called "special editions", but from a customer point of view, it is nice to have variety, and thinking like a manufacturer, keeping too many color combinations in the standard assortment does get expensive and a logistics hassle. Often you wind up later dropping products that don't sell well, and you have to ask yourself if discontinuing lines is better or worse for customer relations than selling limited runs until they are gone. I suppose making those decisions is how Pelikan marketing folk earn their money.
For example, I note that Pelikan was very conservative about adding the black-grey Mx05 Stresemann to the "standard" product line (and I wonder it the M1005 Stresemann will eventually join that "standard" lineup), and I think they take it very seriously. If I remember correctly, a cry went out throughout the land when certain of the red-striped models were discontinued. I suspect it is not easy to discern what is going to be a perennial classic in terms of fountain pen color, and what is just currently trendy.
But, I suppose, for those of us who like the Brown-Black stiped model, we can hope for the future.