TWSBI ECO Piston Filler Fountain Pen – Indigo Blue Bronze

• Edition: Indigo Blue Bronze — Special Edition featuring deep indigo resin paired with premium vintage bronze plating
• Nib: Bronze Plated Steel — Precision Jowo stainless steel nib plated in bronze to perfectly match the trim
• Filling Mechanism: Piston Filler — Internal piston draws ink directly into the barrel (approx. 1.76ml capacity)
• Ink Capacity: Massive — Holds nearly 4x more ink than a standard converter
• Body: Crystal Clear — Transparent barrel allows you to see your ink level and color at all times
• Maintenance: Fully Serviceable — Includes wrench and silicone grease for home disassembly
• Dimensions: 139 mm capped, 168 mm posted — Hexagonal cap prevents rolling and posts securely
• Origin: Made in Taiwan — Precision engineered for durability

About the TWSBI ECO Piston Filler Fountain Pen – Indigo Blue Bronze

The TWSBI ECO Piston Filler Fountain Pen – Indigo Blue Bronze is a sophisticated Special Edition that adds a touch of vintage warmth to the modern ECO design. Unlike the standard silver models, this pen features a deep Indigo Blue cap and piston knob, elegantly offset by warm Bronze-plated trim and a matching bronze-plated nib.

The ECO (short for "Economical") is famous for bringing high-end piston filling mechanisms to an accessible price point. The built-in piston allows you to fill the pen directly from a bottle, holding a massive 1.76ml of ink. The crystal-clear barrel not only lets you monitor your ink level but turns your ink choice into a visual part of the pen's aesthetic.

Designed for daily use, the cap features an inner seal to prevent the nib from drying out, even if left unused for weeks. The distinct hexagonal cap prevents the pen from rolling off your desk, while the round grip section ensures a comfortable writing experience.

True to TWSBI’s philosophy of user empowerment, the pen arrives in a presentation box that includes a wrench and silicone grease, allowing you to fully disassemble and lubricate the mechanism yourself—ensuring your pen lasts a lifetime.