A pen that feels as though it has already lived a little—and intends to age rather well. The Uni-ball ZENTO Signature Model in Stone Brass brings together a quietly confident design with materials that develop character over time, rather like a favourite leather chair or a well-used notebook.

The textured brass finish offers a subtle tactile quality, lending both grip and presence without ever feeling ostentatious. Beneath this, a carefully balanced body ensures that writing remains smooth, controlled, and entirely untroubled—even during longer sessions when lesser pens might begin to feel a touch tiresome.

Equipped with a precise 0.5mm tip and Uni-ball’s ZENTO water-based ink, it produces clean, consistent lines suited to everything from quick notes to more considered writing. It’s dependable, elegant, and refreshingly free of unnecessary flourish—proof that good design often speaks most clearly in a quieter voice.

As a limited edition release, it carries a certain understated exclusivity—one that reveals itself not through spectacle, but through use.

Precision in the Details:

• Refined Balance for Controlled Writing: You always write with stability and ease thanks to a carefully weighted body that never feels awkward or fatiguing.
• Distinctive Finish That Ages Beautifully: You carry a pen with a textured brass surface that develops character over time—never static, always evolving.
• Smooth, Precise Everyday Performance: You rely on a 0.5mm tip and fluid ink for clean, consistent lines across notes, journals, and documents.

Details

• Body Colour: Stone Brass (textured finish, limited edition)
• Tip: 0.5mm
• Ink: Black (ZENTO water-based)
• Refill: UBR-Z-05
• Size: Diameter 13.2mm × Length 123.3mm
• Weight: 40g
• Materials: Aluminium and brass body, textured resin overlay
• Country of Origin: Japan
• Release: Limited Edition, March 2026