Grail Watch Reference

A Reference Library for Watches from Grail Watch

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Daini Seikosha ("the Second Seikosha") was founded in 1937 as a watch production operation for Seikosha K. Hattori & Co, Ltd., forerunner of today's Seiko. Morioka Seiko Instruments, founded in 1970, began producing watch movements two years later. It was brought together with Daini Seikosha to become Seiko Instruments & Electronics in 1983 and was brought into Seiko Holdings in 2009. Domestic watchmaking was brought to Morioka, Iwate in 1999 and a high-end watchmaking operation, Shizukuishi Watch Studio, was founded in 2004. Today, Shizukuishi is responsible for Grand Seiko and Credor.

Movement Families

Shizukuishi is responsible for the following watch movement families:

  • Seiko 6870 family
  • Seiko 4S family
  • Seiko 6S family
  • Seiko 8L/9S family
  • Seiko 9R Spring Drive
  • Seiko 9F quartz

See Also

  • Seiko
  • Daini Seikosha
  • Suwa Seikosha

Seiko 68 Family

Seiko 6S Family

Seiko 9S5x Family

Seiko 9S6x Family

Seiko 9S8x Hi-Beat Family

Seiko 9SA Family

Seiko 6830

Seiko 8L21

Seiko 8L34

Seiko 8L35

Seiko 8L36

Seiko 8L38

Seiko 8L75

Seiko 8L88

Seiko 9S25

Seiko 9S55

Seiko 9S63

Seiko 9S64

Seiko 9S65

Seiko 9S66

Seiko 9S67

Seiko 9S68

Seiko 9S85

Seiko 9S86

Seiko 9SA5