The M400 Brown Tortoise comes in a regular Pelikan box that can be open by pulling on the tab at the side. It also has the standard white faux leather pouch which holds the pen. There wasn’t anything particularly more fancy in terms of the packaging for this special edition fountain pen.
The M400 is mostly made of dark brown resin and brown striped cellulose acetate for its barrel. It is accented with double rings of gold around the end of the cap and at the piston knob. The clip and finial is also gold. The pen looks very classy but the brown stripe barrel adds a flash of character to the otherwise standard looking Pelikan fountain pen. You can tell that this is a quality fountain pen, the fit and finish of the pen is flawless.
It takes slightly less than a single revolution to uncap the pen. The M400 being a pen on the smaller end of the Souveran lineup, the cap can be posted to extend the length of the barrel. The cap securely at the end of the barrel. Personally I found it comfortable enough without posting.
The grip section is relatively short and thin. I would say the M600 would be a comfortable size for most. Those with larger hands should try it out in person before buying. I had some issues with my M205 previously. Maybe this is a special edition fountain pen or the M400 series generally get better quality control, the threads that I found sharp on the M205 are smooth here.