Comparison
Grand Seiko SBGA437G vs Grand Seiko SBGY009G
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 Heritage family.
- Both use a spring drive movement.
- Both cases measure 40 mm across.
- Both cases are stainless steel.
- Both movements are rated for 72 hours of power reserve.
| Spec | SBGA437G | SBGY009G |
|---|---|---|
| Brand | Grand Seiko | Grand Seiko |
| Family | Heritage | Heritage |
| Reference | SBGA437G | SBGY009G |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | unknown | unknown |
| Retail price | unknown | unknown |
| Case material | Stainless steel | Stainless steel |
| Diameter | 40 mm | 40 mm |
| Movement | Spring drive | Spring drive |
| Caliber | Seiko 9R6 | Seiko 9R3 |
| Winding | unknown | unknown |
| Power reserve | 72 hours | 72 hours |
| Jewels | unknown | unknown |
| Frequency | unknown | unknown |
| Complications | unknown | unknown |