TWSBI Classic Sapphire Fountain Pen

TWSBI Classic Sapphire Fountain Pen

The TWSBI Classic combines the brand’s reliable quality with a slim, stylish design—great for both school and work. It uses a piston-filling system, so you can fill it straight from a bottle of ink. Just twist the knob at the end to pull ink into the pen—no need for cartridges or converters. Be careful—operating the piston while ink is in the pen will cause ink to leak out of the pen.

The pen also has a clear ink window so you can see how much ink is left, and two o-rings on the end help hold the cap in place when you post it.

TWSBI believes in giving users the full fountain pen experience, so this pen is easy to take care of yourself. It comes with a wrench and some silicone grease for simple at-home maintenance.

About TWSBI:

TWSBI 三文堂 (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 it’s really fun to see the ink color and it lasts for a very long time.

The name 三文堂 (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.