TWSBI, Diamond 580, Iris Fountain Pen

$120.00 CAD

Fountain Pen Description:


If you are after a classic fountain pen, look no further than the TWSBI Diamond 580. TWSBI fountain pens are a modern writing instrument that uses a traditional piston ink-filling system and comes in a variety of finishes.

TWSBI fountain pens are extremely reliable, but can also be disassembled and reassembled by their owner! This is a traditional fountain pen that modern day society can appreciate!

Fountain Pen Specifications:

  • Material: Resin.
  • Trim colour: Iris.
  • Demonstrator: Yes.
  • Closed: 142.0mm (5.59in).
  • Posted: n/a
  • Open: 130.0mm (5.12in).
  • Converter: Piston.
  • Cartridge type: n/a.
  • Cap type: Screw.
  • Nib colour: Iris.
  • Nib material: Steel.
  • Weight: 28.0g (0.99oz).
  • Ink capacity: 1.9ml.
  • Gift box supplied.
Nib Size

Customer Reviews

Based on 1 review Write a review

Customer Reviews

Based on 2 reviews
TWSBI Diamond 580 Iris

I have had this gorgeous pen for over a year now and still absolutely love it. It's so reliable, sometimes I don't use it for a few weeks and it never hesitates when I start writing or sketching with it- I mostly sketch with my fountain pens, adding watercolour or not. The ink flow is just right on sketchbook paper and also on writing paper. Mine has a "Fine" nib. It's a well balanced pen. One of the best things is the ink capacity- especially as I use it for sketching. I am very happy with it. I have several other TWSBI ECO pens as well.


Good service and a good pen