Comparison
Era 80120-3BUM-BUF vs Grand Seiko SBGJ237
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.
- Grand Seiko SBGJ237 is 0.2 mm larger (44.2 mm vs 44 mm).
| Spec | 80120-3BUM-BUF | SBGJ237 |
|---|---|---|
| Brand | Era | Grand Seiko |
| Family | Neptunian | Collection |
| Reference | 80120-3BUM-BUF | SBGJ237 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | Current | Current |
| Retail price | unknown | unknown |
| Case material | Stainless steel | unknown |
| Diameter | 44 mm | 44.2 mm |
| Grand Seiko SBGJ237 is 0.2 mm larger | ||
| Movement | Automatic | Automatic |
| Caliber | unknown | Seiko 9S8 |
| Winding | unknown | Automatic |
| Power reserve | unknown | 55 hours |
| Jewels | unknown | unknown |
| Frequency | unknown | unknown |
| Complications | unknown | unknown |