TWSBI Precision Gemini Blue Fountain Pen – Limited Edition

Blending traditional craftsmanship with a modern aesthetic, this fountain pen features a solid metal body and hexagonal shape that offer both durability and a refined industrial style. Its piston filling system draws ink directly from a bottle, removing the need for cartridges or converters. A transparent ink window near the grip provides a quick view of ink levels, and the pen can be fully disassembled for easy cleaning and maintenance.

This limited edition Gemini Blue version showcases a striking combination of metallic blue and polished silver. Designed to stand out, it captures the timeless appeal of classic fountain pens while delivering the reliability and bold style suited to modern everyday writing.

• Body Color: Blue
• Body Material: Aluminum
• Cap Type: Screw-cap
• Compatible inks & refills: Bottled inks
• Filling Mechanism: Piston
• Nib Material: Steel
• Diameter: 0.5″
• Length: 5.4″
• Max Ink Capacity: 1.0 ml
• Release Date: April 2025

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About TWSBI:

TWSBI (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so its really fun to see the ink color and it lasts for a very long time.

The name (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name San Wen Tong was reversed and thus turned into “TWS”. The last letters “Bi” was added with its literal meaning of “writing instruments” in Chinese. Thus combining the two segments, creating TWSBI.