The Kaweco Piston Sport brings the iconic pocket form factor into true vintage/sophisticated filling-mechanism territory. It's the same "Sport" silhouette, but a much nicer pen at a higher price point. Yes, there's an ink window!
Still just 10.5 cm closed and full-size when posted, it swaps cartridges for a built-in piston filling system—simple, clean, and ready for your favorite inks. You get the classic octagonal Sport design, a smooth stainless-steel nib, and that balanced in-hand feel Kaweco is known for, now with the convenience of refilling at your desk (or on the go). If you love the Sport but live out of ink samples and bottles, this is the one to carry every day.
