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TWSBI Diamond 580ALR Affogato w/ Onyx

$44.50 $89.00

  • Unconditional Satisfaction Guarantee
  • No Shipping Fees Above 30
  • 2 Months to Decide. Returns Simplified.
SKU: HNEP78772987738
Category:

The Diamond 580 comes with a benchmark piston ink-filling mechanism. It’s clear and comes with all detachable parts. The pen is very nicely made. It feels solid and of high quality. The nib is smooth with a little feedback.

The idea behind the TWSBI Diamond 530, 540, and 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 our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.

TWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have 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. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.

The main difference between 580AL and 580ALR is that ALR comes with the matte finish, subtile details on the grip and cap.

  • Body Material: Resin
  • Cap Type: Screw-cap
  • Compatible inks & refills: Bottled inks
  • Filling Mechanism: Piston
  • Nib Material: Steel
  • Diameter: 0.5″
  • Length: 5.1″
  • Max Ink Capacity: 1.98ml
  • Nib set
  • TWSBI Diamond Ink Bottle
  • Presale date: August 25th, 2025
  • Official Launch date: August 27th, 2025

View allTWSBI products

About TWSBI:

TWSBI (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so its really fun to see the ink color and it lasts for a very long time.

The name (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name San Wen Tong was reversed and thus turned into “TWS”. The last letters “Bi” was added with its literal meaning of “writing instruments” in Chinese. Thus combining the two segments, creating TWSBI.

Shipping Info Standard Shipping
Cost: $25/Free Shipping We offer free shipping on orders over $30. Please check the free - shipping eligibility at checkout.
Delivery Time: It usually takes [3-5] business days for standard shipping. Please note that this is an estimated time frame and may be affected by local holidays, and unforeseen circumstances.

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TWSBI Diamond 580ALR Affogato w/Onyx

$44.50 $88.99

  • Unconditional Satisfaction Guarantee
  • No Shipping Fees Above 30
  • 2 Months to Decide. Returns Simplified.
SKU: CLX699282871
Category:

Features

  • Aluminum machinedgrip, connector, and piston rod
  • Large ink capacity, about 30% more than 530
  • Improved smoothness of cap thread turning
  • Continuous product improvement on small details

TWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have 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. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.

A quick no brainer guide in choosing nib sizes in an overly complicated fountain pen world:

If you write small, go with anEF
For the normal writer,Fis the most popular
If you tend to lean on a bigger font,Mwill be perfect
Bis for statements!! Sign a check in B, write a header in B, do some coloring/shading in B

Stubnibs are italic in writing style (have a special card or invitation to write?

Check outTWSBI Ink. These Inks made by TWSBI compliment this Pen.

* This product is not eligible for discount codes

Shipping Info Standard Shipping
Cost: $25/Free Shipping We offer free shipping on orders over $30. Please check the free - shipping eligibility at checkout.
Delivery Time: It usually takes [3-5] business days for standard shipping. Please note that this is an estimated time frame and may be affected by local holidays, and unforeseen circumstances.

Related products