Spring Drive SBGA384
Grand Seiko Spring Drive Self-winding / 18k rose gold
- Movement
- 9R15
- Case width / diameter
- 40 mm
- Thickness
- 12.5 mm
- Years
- 2018–present or unrecorded end
18 references currently carry this movement label across 1 brands. 2 have an indexable exact-reference page. The movement page is a linked index; exact technical claims remain on the reference records and their evidence panels.