Katana - Sea Wave 海波 かいば
🧡 We’re not a mass factory. We’re a workshop that listens.
🤝 Trusted by 1600+ buyers & 100+ honest reviews.
🛠️ Every katana is handcrafted — no shortcuts, no tricks.
🔁 30-Day Hassle-Free Return ( Custom Orders Not Eligible)



The 28-inch Folded Steel Katana—Sea Wave (海波 かいば) embodies the essence of the ocean's vastness and relentless waves. This katana is more than a weapon; it is a work of art that symbolizes strength, resilience, and the awe-inspiring beauty of the sea. Its unique blade pattern, antique copper guard, and artistically designed scabbard make it a coveted piece for collectors and martial arts practitioners.
Specifications
Material | Folded Steel |
---|---|
Guard (Tsuba) | Pure copper with an antique finish |
Handle (Tsuka) | Genuine fish skin with brass fittings |
Scabbard (Saya) | High-mountain hardwood with pearlescent lacquer finish and hand-printed patterns |
Dimensions
Overall Length | 103 cm (40.6 inches) |
---|---|
Blade Length | 72 cm (28.3 inches) |
Handle Length | 26 cm (10.2 inches) |
Blade Width | 3.2 cm (1.3 inches) |
Weight without Saya | Approximately 1100 g (2.4 lbs) |
Total Weight | Approximately 1400 g (3.1 lbs) |
Features
- Folded steel blade with distinct water-like patterns and 25-stage hand grinding for flexibility and resilience
- Pure copper guard with antique finish symbolizing the power and grace of the sea
- Genuine fish skin handle with brass fittings for a firm grip and luxurious touch
- High-mountain hardwood scabbard with pearlescent lacquer finish and hand-printed patterns for a serene, majestic look
We get it — “free shipping” feels good.
But that’s behavioral psychology at work.
It tricks your brain into thinking you’re saving,
when really, you're just paying in another way.
We don’t play that game.
No fake “free shipping,” no inflated prices, no marketing mind tricks.
Just honest blades, honest pricing.
Maybe it feels unfamiliar — maybe even uncomfortable.
But we believe trust is built on truth, not tactics.
RETURN AND REFUND
Who are we
Our fearless founder, caught the katana bug in Seki City. But his true obsession lies with ancient Chinese weapons. Inspired by legendary blades like the Goujian Sword and the Ganjiang and Moye Swords, Ryze is on a mission to showcase the beauty of Asian craftsmanship to the world.
Our 11 skilled artisans pour their heart and soul into every blade. From heavy metal enthusiasts to zen masters, each brings their unique personality to the forge, crafting katanas and Chinese swords that are more than just weapons - they're works of art.
Our Head of Research and Development, is the sensei of swordsmithing. With decades of experience and a love for traditional craftsmanship, he ensures every NIMOFAN blade is a masterpiece. Off the clock, he tends to his bonsai collection and practices calligraphy.
Leads our customer service team, ensuring every interaction with NIMOFAN is as exceptional as our products. With her contagious laughter and ability to brighten anyone's day, Emily is the heart of our team.