What is the Seppa?

The Seppa are small metal washers that play a crucial role in the structure and aesthetics of a katana. These pieces are located on both sides of the tsuka, which is the handle of the sword, situated between the tsuba (handguard) and the fuchi (cap that closes the end of the handle). Their design and function are essential not only for the secure assembly of the katana but also for preserving its beauty and authenticity.

The primary function of the Seppa is to secure the tsuba and the fuchi in place during the use of the katana. This prevents these parts from loosening or shifting, which is critical for maintaining the balance and maneuverability of the weapon. Additionally, the Seppa act as a buffer, protecting the wood of the tsuka from potential damage that could result from direct contact with the tsuba and the fuchi. Without this component, the durability of the handle would be compromised, affecting the longevity of the weapon.

Another fascinating aspect of the Seppa is their variability in design and finish. You can find Seppa made with the same materials as the tsuba and the fuchi, allowing for aesthetic harmony. Many of them come adorned with intricate engravings or patterns, making them not only functional elements but also artistic pieces that enhance the overall appearance of the katana. This detail is appreciated by both collectors and practitioners of kendo and other martial arts disciplines.

The proper care of the Seppa is crucial to ensure that the katana functions optimally and remains in good condition over time. To do this, it is recommended to clean the Seppa and apply specific lubricants to prevent oxidation and corrosion. Additionally, they should be handled with care to avoid impacts or any type of damage that could affect their effectiveness. Remember that caring for each component of your katana is essential to maintain its integrity and value.