Comparison
Grand Seiko SBGJ239 vs Ingersoll I12307
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 use an automatic movement.
- Ingersoll I12307 is 0.4 mm larger (44.6 mm vs 44.2 mm).
- Both cases are stainless steel.
| Spec | SBGJ239 | I12307 |
|---|---|---|
| Brand | Grand Seiko | Ingersoll |
| Family | Collection | CHALLENGER |
| Reference | SBGJ239 | I12307 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | Current | Current |
| Retail price | unknown | unknown |
| Case material | Stainless steel | Stainless steel |
| Diameter | 44.2 mm | 44.6 mm |
| Ingersoll I12307 is 0.4 mm larger | ||
| Movement | Automatic | Automatic |
| Caliber | unknown | unknown |