The entire body and cap is steel with a polished finish. The end caps are polished steel. This is a small diameter pen. It reminds me a bit of the Parker Vector.
Section has relatively sturdy plastic threads that screw into the the metal body.
Cap is snap on with non-spring clip with "Serwex" printed at the base. I personally prefer a clip with more spring but it is a sturdy construction.
Filler is converter. It is a pretty simplistic plunger-style design that I have found to be common in Indian-made pens.
Feed is molded plastic. Nib is steel and writes medium. It is inscribed "Iridium point Germany". The nib and feed fit pretty tightly into the section and are a bit difficult to remove. Mine writes smooth with a true medium line.
To see more Serwex pens check out www.FountainPenRevolution.com
Edited by kethiemann, 27 December 2011 - 16:51.