Battle Series: TWSBI DIAMOND 580 vs. TWSBI Eco

Battle Series: TWSBI DIAMOND 580 vs. TWSBI Eco

Who’s ready for our next Battle Series post? If you answered yes, then get ready for a good old-fashioned fountain pen face off!

Today, we’re discussing the pros and cons of the TWSBI Diamond 580 vs. TWSBI Eco. Both of these piston-style fountain pens are great options for your writing needs, so let’s get straight down into the nitty gritty details of what each pen has to offer. 


Before we start comparing these two fountain pens, let’s get to know the TWSBI brand a little bit better.  

Their company mission is, “to inspire and recapture the romanticism of art and literature…starting with the pen.” They boast over 50 years of experience in manufacturing plastics and metals – which means they pretty much know what they’re doing when it comes to making their pens. 

The name TWSBI is actually based on phrases associated with ancient Chinese calligraphy, like “San Wen Tong,” so their love of fine writing instruments goes way back. In fact, in Chinese, “Wen” translates to “literary” and “culture.” 

Now that you understand who’s making these pens, let’s move on to the specs of each of our Battle Series guests today.


 TWSBI 580 Diamond Fountain Pen

 “A traditional fountain pen that even modern-day society can appreciate.”

Available Colors: Clear, Emerald, Purple, Silver, Nickel Grey

Material: Sturdy Plastic

Price: $50.00 to $60.00

The TWSBI Eco Pen

 TWSBI Eco Fountain Pen

 A good everyday worker.” 

Available Colors: Black, Blossom Red, Blue, Green, Purple, White, Clear

Material: Sturdy Plastic

Price: $30.99


While both of these fountain pens are a good option for anyone looking to add to their collection, there are a few differences to note.

First off, the TWSBI Diamond 580 is clearly designed for more seasoned fountain pen users who appreciate the history of writing instruments. Its all detachable parts make it the ideal choice for those who enjoy all aspects of owning and using a fountain pen, even the long-term care and maintenance. The whole idea behind the creation of the TWSBI Diamond 580 was to combine old style with new modern elements to create the ultimate pen for today’s writers.

The TWSBI Eco on the other hand is much simpler in design and is hailed as both a beginner and expert level pen. The affordable price makes it a great choice for those who are a bit more inexperienced about fountain pens and not sure where to start. It’s simple ink-filling method allows the writer to quickly touch up their supply without skipping a beat. It’s the everyday pen for people who just want to write and not fiddle around with the inner workings of a fountain pen.

Otherwise, these pens are very similar in size and use, as they are both piston filling fountain pens. If you’re curious to learn more about piston filling fountain pens after checking out the TWSBI Diamond 580 and the TWSBI Eco, be sure to read our blog, “It’s All About the Pistons.” Both pens also feature a clear demonstrator barrel to help you see your ink color and supply, as well as a stainless-steel nib that’s available in all the standard sizes.

Hopefully, the comparison of these two fountain pens will help you make the right decision when it comes to your writing needs.

If you’re having trouble deciding which fountain pen is right for you, contact us to get some expert advice. We have an incredible selection of TWBSI fountain pens here on our website, so if you’re in the market for the Diamond 580 or the Eco, be sure to check out our collection.

Subscribe to Our Newsletter

Get Exclusive Pen Offers and Updates Delivered to Your Inbox

Leave a comment

Please note, comments must be approved before they are published

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.