Thank you for visiting the website of Seiko Denki Co., Ltd.

This year marks the 55th anniversary of our founding.
To commemorate this milestone, we have completely renewed our website.

The new site introduces our long-standing expertise in wire harness manufacturing,
along with our commitment to craftsmanship and our corporate philosophy,
through a clearer and more user-friendly design and structure.

We sincerely appreciate your continued support and patronage.