Grand Seiko watch movements

Japanese name: グランドセイコー

Grand Seiko started as a distinguished sub-brand of Seiko, founded in 1960 with the aim of creating high-end, luxury timepieces that showcase the pinnacle of Japanese watchmaking. With an emphasis on precision, durability, and beauty, Grand Seiko watches are known for their exceptional quality and craftsmanship, often featuring in-house developed movements, such as the Spring Drive and Hi-Beat calibers. The brand has garnered a dedicated following among watch enthusiasts and collectors, who appreciate the intricate details, superior materials, and understated elegance of Grand Seiko timepieces. Although sharing its heritage with Seiko, Grand Seiko operates as an independent entity, focusing on the refinement and innovation that sets it apart from its more widely known parent company.

Movements
1944
1964
1984
3180
3F81
430
4420
4520
4522
4580
4J51
4J52
5641
5645
5646
5722
6145
6146
6155
6156
6185
6186
6245
6246
8J55
8J56
8N65
9581
9587
9F61
9F62
9F82
9F83
9F85
9F86
9R01
9R02
9R15
9R16
9R31
9R65
9R66
9R84
9R86
9R96
9RA2
9RA5
9S25
9S27
9S51
9S54
9S55
9S56
9S61
9S63
9S64
9S65
9S66
9S67
9S68
9S85
9S86
9SA5
9SC5
9ST1
T0