TWSBI Diamond 580ALR Fountain Pen, Prussian Blue

The TWSBI Diamond 580 is a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, TWSBI has created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts.

TWSBI fountain pens are notorious for their high-quality and special filling systems normally found only on much more expensive pens. Simply uncap and twist the end cap to extend the piston, dip it into ink, and screw back the end cap to fill. Just like that - you're ready to write and there is no need for cartridges or a converter! This pen also features a crystal clear acrylic barrel, so you can always see your ink level.

This fountain pen features a matte finish, subtle details on the grip and cap, a new machined aluminum grip and piston rod. 

In keeping with their philosophy of promoting the traditional experience of using a fountain pen, TWSBI has designed this pen to be completely self-serviceable. It comes with a wrench and a vial of silicone grease you can use for at-home maintenance. Don't worry... this is only for long-term care and nothing you have to think about right away.

• Choose from F, or M nib sizes
• This pen only uses bottled ink. Ink is not included.
• Piston filling system
• Features an inner cap to insure a perfect seal when stored away
• Upon arrival, some ink from may be visible on the nib from dip testing at TWSBI. We recommend cleaning before use
• Please use care if you disassemble the nib and feed, as the feed is very fragile