Suwa Seikosha began in 1942 as Daiwa Kogyo in Suwa, Nagano, Japan. A joint-venture watch manufacturing operation was formed with Hattori (now Seiko) and the companies were merged in 1959 to become Suwa Seikosha. This company operated separately from Daini Seikosha and focused on high-end watches, originating the Grand Seiko line in 1960. Suwa Seikosha and Epson Corporation merged in 1985 to become Seiko Epson, which operates the Orient watch company today and produces quartz watches for Seiko.
Movement Families
Suwa Seikosha produced the following movement families:
- Seiko 5600
- Seiko 5700
- Seiko 6100
- Seiko 6139
- Seiko 6200
- Seiko 6300
- Seiko 6600
