Seki Kanetsugu Zuiun Kiwami series has black coated blades made of high-speed powder steel SPG2 (Super Powder Gold 2) and covered with 62-layer damascus. The elegant, very resilient, and effortlessly clean grip is composed of laminate, shaped like an octagon, and it fits snugly in the hand.
The wavy "hamon" pattern on the blades of Zuiun knives is reminiscent of Japanese swords. Seki Kanetsugu Cutlery, in its current form, has been producing cutting-edge blades that embody the qualities of Japanese swords—they are extremely sharp, indestructible, and unyielding. The spirit of these swords was likewise imparted to the Zuiun by the manufacturer.