Comparison
Grand Seiko SBGA407G vs Grand Seiko SBGM221G
Sourced specs side by side. A value is highlighted only where one is objectively greater (power reserve); size and the rest are a matter of taste. unknown means no sourced value yet.
At a glance
- Both belong to the Grand Seiko Collection family.
- Grand Seiko SBGA407G uses a spring drive movement; Grand Seiko SBGM221G uses an automatic one.
- Grand Seiko SBGA407G is 0.7 mm larger (40.2 mm vs 39.5 mm).
| Spec | SBGA407G | SBGM221G |
|---|---|---|
| Brand | Grand Seiko | Grand Seiko |
| Family | Collection | Collection |
| Reference | SBGA407G | SBGM221G |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | unknown | unknown |
| Retail price | unknown | unknown |
| Case material | unknown | unknown |
| Diameter | 40.2 mm | 39.5 mm |
| Grand Seiko SBGA407G is 0.7 mm larger | ||
| Movement | Spring drive | Automatic |
| Caliber | unknown | unknown |