Comparison
Grand Seiko SBGA231G vs Grand Seiko SBGC247G
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 Sport family.
- Both use a spring drive movement.
- Grand Seiko SBGA231G is 1 mm larger (44 mm vs 43 mm).
- Both cases are titanium.
- Both movements are rated for 72 hours of power reserve.
| Spec | SBGA231G | SBGC247G |
|---|---|---|
| Brand | Grand Seiko | Grand Seiko |
| Family | Sport | Sport |
| Reference | SBGA231G | SBGC247G |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | unknown | unknown |
| Retail price | unknown | unknown |
| Case material | Titanium | Titanium |
| Diameter | 44 mm | 43 mm |
| Grand Seiko SBGA231G is 1 mm larger | ||
| Movement | Spring drive | Spring drive |
| Caliber | Seiko 9R6 | Seiko 9R9 |
| Winding | unknown | unknown |
| Power reserve | 72 hours | 72 hours |
| Jewels | unknown | unknown |
| Frequency | unknown | unknown |
| Complications | unknown | unknown |