TWSBI Diamond 580 AL Fountain Pen | Prussian Blue

The TWSBI Diamond 580 AL Prussian Blue fountain pen is a premium model from the Taiwanese brand TWSBI, in a deep, Prussian blue – a color inspired by a classic pigment with a rich history. The transparent resin body with matte aluminum elements gives it a sophisticated, modern character. The built-in piston filling system, with a 30% larger capacity than the 530 model, and the possibility of complete disassembly make the Diamond 580 AL the choice for true fountain pen enthusiasts.

Why choose the TWSBI Diamond 580 AL Prussian Blue?

• Larger ink capacity: 30% more than the 530 model – less frequent refilling, longer writing.
• Matte aluminum details: Elegant, durable aluminum elements contrasting with the transparent body.
• Transparent body: Observe the ink color and level in real-time.
• Full disassembly: All elements can be unscrewed and reassembled – complete control over your pen.
• Steel nib: Smooth, precise writing in EF, F, M, B, and Stub 1.1 sizes.

Technical specifications:

• Material: Resin, aluminum
• Length with cap: 142 mm
• Length without cap: 130 mm
• Nib: Steel (EF, F, M, B, Stub 1.1)
• Filling system: Piston
• Country of production: Taiwan

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