Grand Seiko
Calibre 9R01
Spring Drive, manual winding
Specifications
- Maker
- Grand Seiko
- Type
- Spring Drive, manual winding
- In-house
- Yes
- Power reserve
- about 192 h
- Frequency
- Not found in sources
Sources
- Official Grand Seiko retrieved October 16, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Grand Seiko Masterpiece SBGD201 SBGD201J | 43 mm | 13.2 mm | 51.8 mm |
| Grand Seiko Masterpiece SBGD202 SBGD202J | 43 mm | 13.2 mm | 51.8 mm |
| Grand Seiko Masterpiece SBGD228 “Red Lion” SBGD228J | 44.5 mm | 14.4 mm | 52 mm |