The Kaweco DIA originated in 1921. The decorative elements and proportions of the DIA2 are the same as in the original DIA of the golden twenties. This treasured aesthetic from the heydays of German art, culture and science was able to be preserved in its entirety until today. Featuring distinctive knurling on its cap and barrel, beautiful solid brass clip, and high quality, elegantly polished black resin, the DIA2 series pens are truly timeless. 
For the DIA2 ballpoint model, Kaweco offers blue and black G2 quality ballpoint refills with a line width of 0.8 mm, 1.0 mm and 1.4 mm in ink colors blue and black.