Grand Seiko
Calibre 9S86
Automatic
Specifications
- Maker
- Grand Seiko
- Type
- Automatic
- In-house
- Yes
- Power reserve
- about 55 h
- Frequency
- Not found in sources
Sources
- Official Grand Seiko retrieved October 14, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Grand Seiko Sport SBGJ237 Mechanical GMT SBGJ237G | 44.2 mm | 14.4 mm | 50.6 mm |