TWSBI Diamond 580AL Silver Fountain Pen - Clear with silver aluminium trim

A pure demonstrator with clean silver accents

The TWSBI Diamond 580AL Silver strips the design back to show you all the inner workings. The crystal clear body, with silver aluminium trim, gives you a neutral platform to let your ink become the main character. Based on the proven 580 model this 580AL adds the upgraded grip and silver piston system for a more elevated feel.

What sets it apart

• Piston filling system, with higher ink capacity than cartridge/converter pens
• Clear demonstrator with silver aluminium trim, for clean, neutral look
• Works with any ink colour and any setup
• Aluminium grip for solid, slightly cooler feel
  
• Reliable, smooth stainless steel nib, from EF, F, M, B, to Stub option

Feel in the hand

Clear and focused. Nothing competes with the ink, so your attention stays on the writing itself. It feels deliberate without being distracting.

Who it’s for

• Writers who want a neutral, go with anything demonstrator
• Ink users who frequently rotate colours
• TWSBI users upgrading from Eco or standard 580
• Anyone building a clean, minimal writing setup

Not for

• Petite hands (consider the TWSBI Diamond Mini)
  
• Users sensitive to metal grip sections
• Cartridge only users who want zero maintenance

Practical tips

• Twsbi pens are designed for easy maintenance. If you spill ink in the pen cap, use an elastic band wrapped along the length of a pencil to remove the inner cap for cleaning

FAQs

Is this beginner-friendly?
Yes, you dial in the ink at a controlled pace, and will be writing for a couple of weeks before you have to refill. The pen box includes filling instructions.

How much ink does it hold?
The chamber can hold up to 1.9mL, which is 2-3 times a cartridge or converter.

How does it compare to Twsbi Eco?
The Diamond 580 is the more refined everyday writer with a screw-in nib unit and more substantial grip. Eco is simpler, lighter, and more entry-focused.

What's the difference between 580, 580AL and 580ALR?
580 is the base model. AL adds aluminium components. ALR adds a ribbed grip for extra control. Most current releases are ALR variants.

Can you change nibs?
Yes. The nib unit is fully replaceable and can be swapped even when the pen is inked.

Does it come with ink?
No. It is designed for bottled ink use only.

Is it fragile?
Not with the right care. Avoid over tightening the cap during daily use and minimise how often you disassemble the pen. 

How do you clean it?
Only basic flushing is required. Full disassembly is optional and typically only needed for long-term piston maintenance.

What’s included

• TWSBI Diamond 580AL Silver Fountain Pen
• Wrench
• Silicone grease
• Presentation box
• Instruction leaflet
• Free nib tuning from LarryPOST

Ink pairing suggestions

• Any colour works, this is a true neutral base
• High shading inks to show off variation clearly
  
• Dark inks for maximum contrast and clarity

Build your practice

• Use with the Twsbi Diamond Ink Well for mess free filling
• Replacement Diamond 580 nibs, for exploring line width 
• De Atramentis Document ink for permanence
• Twsbi Pipe is an attachment to fill from an almost empty ink bottle

Specifications

• Brand: TWSBI
• Brand series: Diamond 580AL/ALR
• Launch: June 2014
• Origin: Taiwan
• Nib: Stainless steel
• Nib sizes: EF, F, M, B, 1.1 stub
• Filling system: Piston filler (1.9mL)
• Body: Transparent polycarbonate
• Trim: Stainless steel
• Cap: Twist
• Grip: approx. 10mm
• Diametre: approx. 13mm
• Length: approx. 142mm (capped)
• Weight: approx. 29g (capped)
• Comparable size: Pilot Custom 74, Lamy Studio

A clean baseline demonstrator that lets your ink define the look.