Comparison
Grand Seiko SBGN027 vs Yema Navygraf Marine Nationale Quartz
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 quartz movement.
- Both cases measure 39 mm across.
- Both cases are stainless steel.
| Spec | SBGN027 | Navygraf Marine Nationale Quartz |
|---|---|---|
| Brand | Grand Seiko | Yema |
| Family | Collection | Watches Official Store |
| Reference | SBGN027 | Navygraf Marine Nationale Quartz |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | Current | Current |
| Retail price | unknown | unknown |
| Case material | Stainless steel | Stainless steel |
| Diameter | 39 mm | 39 mm |
| Movement | Quartz | Quartz |
| Caliber | Seiko 9F8 | unknown |
| Winding | Quartz | unknown |
| Power reserve | unknown | unknown |
| Jewels | unknown | unknown |
| Frequency | unknown | unknown |
| Complications | unknown | unknown |