Comparison
Grand Seiko SBGW231 vs Hamilton H69439931
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 a manual movement.
- Hamilton H69439931 is 0.7 mm larger (38 mm vs 37.3 mm).
- Both cases are stainless steel.
- Hamilton H69439931 has the longer power reserve (80 vs 72 hours).
| Spec | SBGW231 | H69439931 |
|---|---|---|
| Brand | Grand Seiko | Hamilton |
| Family | Heritage | Khaki Field |
| Reference | SBGW231 | H69439931 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | Current | Current |
| Retail price | unknown | unknown |
| Case material | Stainless steel | Stainless steel |
| Diameter | 37.3 mm | 38 mm |
| Hamilton H69439931 is 0.7 mm larger | ||
| Movement | Manual | Manual |
| Caliber | Grand Seiko 9S64 | ETA H-50 |
| Winding | Manual | Manual |
| Power reserve | 72 hours | 80 hourslonger |
| Jewels | unknown | unknown |
| Frequency | 28,800 vph | unknown |
| Complications | unknown | unknown |