on saleTWSBI Diamond 580 Fountain Pen - Clear

Product Code TW-M7443110

In Stock

out of stock

on saleTWSBI Diamond 580 Fountain Pen - Clear

Product Code TW-M7443110

In Stock

out of stock

$50.00
Nib Guide

Not sure which size nib is best for you?

Try our Nib Nook tool to view and compare nib widths using our writing samples. Learn more ›

ENHANCEMENT OPTIONS
TWSBI Diamond 50 Ink Bottle - Black
Add an Inkwell + $25.00 TWSBI Diamond 50 Ink Bottle - Black
Color:
$25.00
$25.00

TWSBI Diamond 50 Ink Bottle - Black

Product Code TW-M7442980

In Stock

out of stock

$25.00
Add this item

The TWSBI Diamond 580 comes with a benchmark piston ink-filling mechanism and has all detachable parts. The clear demonstrator barrel allows you to see your ink color and remaining ink level. It has a clear grip section and screw-cap. It comes with a stainless steel nib and is presented in a modern clear display case.

The idea behind the TWSBI Diamond 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was TWSBI's goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.

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.

TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.

You may notice a white substance on your 580AL or 580ALR pistons. This is white ball bearing grease, and must not be removed during cleanings, or replaced by silicone grease

Condition
New
Brand
TWSBI
Type
Fountain Pens
Color
Clear
Demonstrator

Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.

Yes
Body Material
Resin
Cap Rotations

For pens with a screw-cap closure, how many rotations it takes to uncap/recap the pen.

1.25
Cap Type

How the cap is opened/closed from the barrel of the pen. Some common options include Snap-Cap, Screw-Cap, Magnetic Cap, or Capless (no cap).

Screw-cap
Compatible inks & refills

Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.

Bottled ink
Filling Mechanism

How the pen fills with ink. Click here to watch our video tutorial on common filling mechanisms.

Piston
Grip Material
Resin
Nib Size
Extra-Fine, Fine, Medium, Broad, 1.1mm Stub
Nib Color
Silver
Nib Material
Steel
Postable

Whether or not the cap fits securely onto the back of the barrel when open.

No
Retractable

Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).

No
Diameter - Body
13.3mm (0.52in)
Diameter - Cap (without clip)
14.4mm (0.57in)
Diameter - Cap (with clip)
18.6mm (0.73in)
Diameter - Grip (mm)

Measured from the place most people choose to rest their fingers, which varies with each pen.

10.0mm
Length - Body

The measurement from the back end of the barrel to the tip of the nib.

130mm (5.12in)
Length - Cap
60mm (2.36in)
Length - Nib

The measured length of the visible portion of the nib when it is installed in the pen, from grip to tip.

19mm (0.75in)
Length - Overall (Closed)
142mm (5.59in)
Weight - Body

If a converter is included with the pen, this weight is reflected in the total.

14g (0.49oz)
Weight - Cap
14g (0.49oz)
Weight - Overall (g)
28.0g
Max Ink Capacity - Piston Vac

The maximum volume of ink that can fit in the pen when using the built-in piston or vacuum filling mechanism.

1.98ml

Customer Reviews

Based on 383 reviews
81%
(311)
12%
(46)
3%
(10)
2%
(6)
3%
(10)
S
Sharon
Thumbs up

Differing from the ECO line, this pen is much nicer. It feels like a good entry level pen without breaking the bank.

B
Brett P.
Beautiful pen

An amazing pen. Writes great.

G
Greg
TWSBI 580

Great build quality!

A
Anonymous
yahoo

Me like yes good I like lot a alot**a lot

T
Tony D.
Love the Diamond 580

Enjoying the pen very much thus far, one of my favorite aspects of it is how easy it is to swap out nibs. I love alternating between EF and 1.1mm stub for body and header writing. The system TWSBI has developed for that swap, and for storing the extra nibs in those nice red capped vials is amazing!

Frequently Asked Questions

How do I fill a fountain pen with ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It depends on the pen's filling mechanism, which you can find in the Technical Specs section above. 

Here's a quick definition of the most common filling mechanisms:

  • Cartridge - A small, disposable, sealed plastic reservoir that holds fountain pen ink. These come pre-filled with ink, and typically you just push to insert them into place and you'll be ready to write! Check out our quick guide here.
  • Converter - A detachable and refillable ink reservoir that allows you to use bottled ink in a cartridge-accepting pen. Typically you will install the converter into the grip section, dip the nib/feed into the ink, and twist or pull the converter knob to draw ink into the converter. Here's a video for how to fill a cartridge/converter pen using a LAMY pen as an example.
  • Eyedropper - A pen that utilizes the entire barrel as a reservoir for ink. Ink is directly filled into the barrel, allowing for a high ink capacity. Here's a video on how to do it!
  • Piston - A type of filling system that uses a retracting plunger inside a sealed tube to draw ink into a pen. They are typically either twist or push-operated. These pens cannot accept cartridges or a converter, and only fill from bottled ink.
  • Vacuum - A push-style piston that uses pressure to fill the large pen body with ink. They seal the ink chamber when closed, making it ideal for flying without risk of leaking. Check out our video on how to use a vac filler here.

Check out more info on these filling mechanisms including a video on how to fill each one on our blog.

How do I clean this fountain pen? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It mostly comes down to flushing out the pen with water, and sometimes a little bit of pen flush if the ink is really stuck. 

We put together a blog post with step-by-step instructions, or you can watch the video here:

We recommend a good cleaning every 2 weeks, and any time you change ink colors. Water will usually do the trick, but we recommend you use our Goulet Pen Flush if the ink has been left in the pen for a while and could have dried up, or when you’re switching ink colors.

For even more information about fountain pen cleaning, check out our Fountain Pen 101 video blog post.

What's your return policy? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We accept returns for up to 30 days from purchase. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.