Presenting the “Sea Dragon” (Kairyū) hand forged Japanese samurai sword, a blade that captures the raw power and majestic grace of the mythical sea serpent. The katana features a blade forged from T10 carbon steel and treated with traditional clay tempering (differential hardening), resulting in a genuine hamon line and outstanding cutting performance. The blade is further adorned with a hand-carved sea dragon relief along its surface, making this sword a rare fusion of functional weaponry and sculptural art. For collectors, martial artists, and connoisseurs of fine edged weapons, the Sea Dragon katana stands as a testament to craftsmanship and legend.
Every sword is hand forged by experienced smiths. T10 carbon steel is a high-carbon tool steel known for its excellent edge retention, hardness, and ability to take a razor-sharp edge. During the clay tempering process, a special clay mixture is applied to the blade before heat treatment. The edge is coated thinly to cool quickly and become very hard, while the spine is coated thickly to cool slowly and remain tougher and more flexible. This creates a visible hamon — the wavy temper line — and gives the blade a perfect balance of a hard, sharp cutting edge and a resilient, shock-absorbing spine. The result is a sword that cuts cleanly and withstands impact without chipping or breaking.
The most striking feature of this katana is the hand-carved sea dragon relief on the blade. The dragon, master of oceans and storms, is depicted coiling along the steel with detailed scales, claws, and flowing whiskers. The relief carving is deep and tactile, not a laser etching or printed design. It adds texture and a three-dimensional quality that changes with the light, giving the blade an almost living presence. Each relief is individually finished, so no two swords are exactly alike.
The sword is built with a full tang construction, meaning the blade steel extends through the entire handle and is secured with two bamboo mekugi pegs. This traditional method ensures maximum strength and safety, making the sword suitable for cutting practice (tameshigiri), martial arts training, and display. The tang is properly aligned and robust, preventing loosening or separation even under repeated stress.
The handle core is made from hard wood and wrapped with imitation ray skin (samegawa), providing a traditional textured grip. The tsuka is then wrapped in a tight cotton ito cord in a classic diamond pattern for comfort and durability. The guard (tsuba), collar (fuchi), and pommel (kashira) are crafted from alloy with detailed traditional motifs that complement the sea dragon theme. The habaki (blade collar) is made of copper, ensuring a snug fit inside the scabbard and adding a premium accent.
The saya is made from lacquered wood (painted wood scabbard), offering a smooth, glossy finish that protects the blade from moisture, dust, and scratches. The lacquer coating is durable and elegant, matching the overall aesthetic of the sword. A protective cloth sword bag is included for storage and transportation. The total weight of approximately 1.5 kg gives the sword a solid, authoritative feel that is well balanced for both cutting and display.
Whether you are a serious practitioner, a collector of fine edged weapons, or someone seeking a meaningful gift with deep cultural and mythical significance, the Sea Dragon hand forged Japanese samurai sword is an exceptional choice. The combination of T10 carbon steel, clay tempering, hand-carved relief, and full tang construction makes this sword both a high-performance tool and a stunning work of art. Each sword is carefully inspected before shipping to ensure it meets high standards of craftsmanship. Due to the handmade nature, minor variations in the hamon, relief details, and finish may occur, making your sword truly one of a kind.
Included in the package:
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