Comparison
Grand Seiko SBGC247G vs Grand Seiko SBGE257G
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 SBGC247G is 3 mm larger (43 mm vs 40 mm).
- Grand Seiko SBGC247G has a titanium case; Grand Seiko SBGE257G is in ceramic.
- Both movements are rated for 72 hours of power reserve.
| Spec | SBGC247G | SBGE257G |
|---|---|---|
| Brand | Grand Seiko | Grand Seiko |
| Family | Sport | Sport |
| Reference | SBGC247G | SBGE257G |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | unknown | unknown |
| Retail price | unknown | unknown |
| Case material | Titanium | Ceramic |
| Diameter | 43 mm | 40 mm |
| Grand Seiko SBGC247G is 3 mm larger | ||
| Movement | Spring drive | Spring drive |
| Caliber | Seiko 9R9 | Seiko 9R6 |
| Winding | unknown | unknown |
| Power reserve | 72 hours | 72 hours |
| Jewels | unknown | unknown |
| Frequency | unknown | unknown |
| Complications | unknown | unknown |