2026/01/05
2025/12/22
2025/11/19
2024/10/07
2024/09/20
2024/08/05
2024/07/12
2024/07/08
2024/05/02
2024/03/22

A Commitment to Pursuing Challenges People, Knowledge, and Technical Expertise
Design and manufacturing of mechanical machinery
Contributing to labor shortage solutions and stable quality
Precision component processing technology
Enhancing quality through microfabrication
Precision component assembly centered on watch manufacturing
Contributing through fine assembly work
Evolving Precision Technology - Business Overview
Processing Equipment Supporting Our Technology Facilities
Creating an environment that continues to evolve with the times
At Nanan Seiko, we have continuously advanced our facilities to provide integrated services from CAD-based design to precision component processing, prototyping, functional testing, and assembly, enabling us to bring our customers’ requirements to life. We deliver solutions in an environment where we can pursue the precision and performance our customers demand.


People Development is the Foundation of Manufacturing Careers
At Nanan Seiko, we believe that developing people enables our business and technologies to continue evolving beyond generations.
We are looking for motivated individuals who will shape the future by overcoming technical challenges. We spare no effort in supporting that growth.

Company Overview About Nanan Seiko
Since our founding in 1967, Nanan Seiko Co., Ltd. has focused on the development, design, and manufacturing of precision machinery and component processing, always acting with customer satisfaction in mind.
Thanks to your continued support, we have earned the trust of many customers.

Technology Overview Nanan Seiko’s Technical Capabilities
Nanan Seiko’s core business is the design and manufacturing of machinery, including FA equipment, automated systems, and labor-saving machinery.
To support this, we carry out in-house precision component processing using NC lathes and machining centers, and we also accept component processing orders from customers.
In addition, by integrating these technologies, we provide services for the manufacturing, sales, and repair of original watches.
Product Information
News
Contact Information
From prototyping and manufacturing of precision mechanical components to assembly and the design and production of automated and efficiency-enhancing machinery,
Nanan Seiko responds to a wide range of customer needs.
If you have any questions, please contact us by phone or through the inquiry form.
TEL: 0263-72-2400 0263-72-2400
2300-1 Toyoshina, Azumino City, Nagano Prefecture 399-8205
TEL:0263-72-2400 0263-72-2400 FAX: 0263-73-0670






