- Seiko Instruments Inc. (SII) was established in 1937 as a key watch manufacturing company for the Seiko Group.  Based on its sophisticated micromechatronics and nanotechnology techniques developed through decades of experience in precision machinery manufacturing and low-power consumption technologies, the company provides micromechatronic products and services including watch and HDD components; semiconductors, FPD and electronic devices; network solutions systems; nanotechnology equipment; scientific instruments; and large-format inkjet printers.