Kaweco DIA2 Rollerball Pen - Black Chrome

Out of all the Kaweco models, the DIA2 undergoes the most complex manufacturing process. The traces of the Kaweco DIA go back to 1921. There have been various variants since then. At that time, the writing systems fountain pen, twist-, push- and multi-colored pencils were made of black ebonite and high-grade, colored celluloid. Today, the series is made of high-quality acrylic and is polished by hand as a last step.

The screw-on cap seals securely in about one rotation, keeping the gel tip from drying out between uses. Post the cap for a full-length writing experience at 159mm, or write uncapped for a more compact feel. The pen ships with a Kaweco EURO Rollerball refill in black (0.7mm).

Assembled from more than 15 individual parts. Hand-polished. Hand-assembled. Individually inspected in Nuremberg, Germany. Presented in Kaweco's long metal tin.

Why It's Special

• Gel rollerball meets 1920s heritage — The smoothest writing experience in the Dia2 family, pairing effortless ceramic roller delivery with a design language faithfully preserved from Kaweco's golden-era originals
• Hand-polished black acrylic — CNC-machined from high-quality PMMA, then polished by hand to a deep, glossy black finish that's surprisingly scratch-resistant and develops a beautiful luster over time
• Brass-lined barrel for balanced weight — The internal brass lining gives the Dia2 the kind of planted, substantial feel that belies its acrylic construction — balanced enough for extended writing without fatigue
• Screw-on cap with secure seal — Keeps the gel tip protected and ready to write, unlike twist or click mechanisms where exposed tips can dry out; posts securely for full-length use
• Signature knurled detailing — The distinctive knurling pattern on the cap and barrel end has been a defining Dia design element since the 1930s, giving the pen a tactile character you won't find on anything else in the lineup
• 15+ individual parts, hand-assembled in Nuremberg — Every pen is polished, assembled, and individually inspected by hand in Germany's historic pen-making city

Detailed specs: 

• Body material: High-quality acrylic (PMMA), brass-lined barrel
• Trim: Chrome-plated 
  
• Refill: Kaweco EURO Rollerball (0.7mm black included)
• Cap: Threaded 
• Weight: 32 grams
• Length: 132mm / 5.2 in capped 125 mm / 4.92 in uncapped, 122.7 mm / 4.83 in , posted 159 mm / 6.26 in
• Diameter: 14.2 mm / 0.56 in (without clip)
  
• Made in Germany