TWSBI Diamond 580 Iris fountain pen Kaweco As with most Lamy pens

As with most Lamy pens

Opus 88 has been manufacturing pens for many companies and decided to use the gained experience by producing it’s own pens under the Opus 88 brand

The Vacuum filling mechanism requires you to pull back the knob

In silver or gold color finish

The Orange Custom 74 will be phased out and only available with a broad nib still

TWSBI Diamond 580 Iris fountain pen Kaweco As with most Lamy pensThe exact colors will be different on each TWSBI 580 Iris fountain pen. De TWSBI Diamond 580 is made of transparent plastic, which provides a wonderful view on the inside of the pen, the piston mechanism and ink level. The pens character will change with every other color you fill it with. The fountain pen details have a chrome trim and the plastic is facetted. For the adventurous people, the pen is easy to take apart for servicing or cleaning. A key