Comparison
Grand Seiko SBGJ251G vs Grand Seiko SBGE307
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 SBGJ251G uses an automatic movement; Grand Seiko SBGE307 uses a spring drive one.
- Grand Seiko SBGE307 is 5 mm larger (44.5 mm vs 39.5 mm).
| Spec | SBGJ251G | SBGE307 |
|---|---|---|
| Brand | Grand Seiko | Grand Seiko |
| Family | Collection | Collection |
| Reference | SBGJ251G | SBGE307 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | unknown | Current |
| Retail price | unknown | unknown |
| Case material | unknown | unknown |
| Diameter | 39.5 mm | 44.5 mm |
| Grand Seiko SBGE307 is 5 mm larger | ||
| Movement | Automatic | Spring drive |
| Caliber | unknown | Seiko 9R6 |
| Winding | unknown | unknown |
| Power reserve | unknown | 72 hours |
| Jewels | unknown | unknown |
| Frequency | unknown | unknown |
| Complications | unknown | unknown |