Blue Manganese Steel Katana with Wave Hamon, Black-Gold Tsuba & Blue Hardwood Saya

The blade on this katana is forged from manganese steel and finished in a deep blue tone that runs the full length of the nagasa. A wave-pattern hamon traces the edge, creating a bright, textured contrast against the blue body - a detail visible from across the room and best appreciated up close where the polished bevel catches light. The raging-fire style grind gives the hamon an energetic, irregular rhythm that sets this piece apart from standard straight-temper finishes.

The tsuka is built on a full-tang core, keeping the blade locked into the handle without relying on adhesive alone. Black cord wraps tightly over white PU samegawa in the traditional diamond-lozenge pattern, providing a firm grip surface and a clean black-and-white visual that offsets the blue blade. A black tassel hangs from the kashira, adding the final touch of classical koshirae styling.

At the guard, a round iron tsuba in black with gold-tone detailing bridges handle and blade. The plain round shape keeps the silhouette uncluttered while the two-tone finish - black body, gold habaki and collar - adds depth without competing with the blade's dominant blue. This kind of restrained hardware choice is what gives the full assembly a coherent, intentional look rather than a mix of mismatched parts.

The saya is shaped from hardwood and finished with a premium natural lacquer coat in blue. The surface shows a speckled, almost frosted texture in light sky-blue tones - a clear visual match to the blade it houses. A black sageo cord is pre-attached at the kurigata for traditional carry or display rigging. If you're exploring the full range of Blue Katana options, this piece sits at the more visually distinctive end of the spectrum.

Overall length is 41 inches with a shipping weight of 4 lbs, packaged in a 43 x 4 x 4 inch box. The assembled weight of 3 lbs gives it a solid presence on a wall mount or display stand. For collectors focused on the Blue Manganese Steel Katana category, the wave hamon and matching blue saya make this one of the more cohesive full-koshirae sets available at this specification level. Sword stand not included.