TWSBI Diamond 580 Fountain Pen - Clear

£44.17 GBP

Nib Width

The TWSBI Diamond 580 Clear is the classic demonstrator version of TWSBI's flagship fountain pen — fully transparent from cap to barrel, letting you see every drop of ink and the full inner workings of the piston mechanism in action.

The body is crafted from clear resin with a steel grip section, connector and piston rod, giving the pen a clean, consistent look throughout. The faceted diamond-cut barrel catches the light and shows off your ink colour to stunning effect — ideal for ink enthusiasts who love to see what they're writing with.

Key specifications:

  • Filling system: Piston
  • Body material: Steel grip & trim, clear resin barrel
  • Length capped: 14.2cm | Posted: 17.5cm
  • Nib options: EF, F, M, B, 1.1mm Stub

Each pen comes presented in a clear gift box and includes a vial of silicone grease, an instruction sheet, and a small spanner for piston maintenance. The nib, ink feed and grip section are fully disassemblable for deep cleaning.

Browse the full TWSBI fountain pen range at Pure Pens.

UK Delivery Information

Free Royal Mail 48 (2-4 day) shipping on orders over £50.

Upgraded to 24 (1-2 day) or Special Next Working Day Delivery based on order value too. Learn More

Non-UK Orders

EU Orders will now have VAT applied at checkout, so there are NO fees due before delivery.

US Orders will have duties applied at checkout, so NO additional fees due before delivery

Other countries will be tax free at checkout, but duties may be charged by your local customs office before delivery - We cannot control this as each country has their own rules for different products.

Pure Pens

TWSBI Diamond 580 Fountain Pen - Clear

£44.17 GBP

The TWSBI Diamond 580 Clear is the classic demonstrator version of TWSBI's flagship fountain pen — fully transparent from cap to barrel, letting you see every drop of ink and the full inner workings of the piston mechanism in action.

The body is crafted from clear resin with a steel grip section, connector and piston rod, giving the pen a clean, consistent look throughout. The faceted diamond-cut barrel catches the light and shows off your ink colour to stunning effect — ideal for ink enthusiasts who love to see what they're writing with.

Key specifications:

Each pen comes presented in a clear gift box and includes a vial of silicone grease, an instruction sheet, and a small spanner for piston maintenance. The nib, ink feed and grip section are fully disassemblable for deep cleaning.

Browse the full TWSBI fountain pen range at Pure Pens.

Nib Width

  • Extra Fine
  • Fine
  • Medium
  • Broad
  • 1.1mm
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