Comparison
Grand Seiko SBGW306 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 1.5 mm larger (38 mm vs 36.5 mm).
- Hamilton H69439931 has the longer power reserve (80 vs 72 hours).
| Spec | SBGW306 | H69439931 |
|---|---|---|
| Brand | Grand Seiko | Hamilton |
| Family | Collection | Khaki Field |
| Reference | SBGW306 | H69439931 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | Current | Current |
| Retail price | unknown | unknown |
| Case material | unknown | Stainless steel |
| Diameter | 36.5 mm | 38 mm |
| Hamilton H69439931 is 1.5 mm larger | ||
| Movement | Manual | Manual |
| Caliber | Seiko 9S6 | ETA H-50 |
| Winding | Manual | Manual |
| Power reserve | 72 hours | 80 hourslonger |
| Jewels | unknown | unknown |
| Frequency | unknown | unknown |
| Complications | unknown | unknown |