Comparison
Doxa SUB 300 Professional vs Seiko HBF003J1
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.
- Seiko HBF003J1 is 0.1 mm larger (42.6 mm vs 42.5 mm).
- Doxa SUB 300 Professional has a stainless steel case; Seiko HBF003J1 is in ceramic.
| Spec | SUB 300 Professional | HBF003J1 |
|---|---|---|
| Brand | Doxa | Seiko |
| Family | SUB 300 | Prospex |
| Reference | SUB 300 Professional | HBF003J1 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | Current | Current |
| Retail price | unknown | unknown |
| Case material | Stainless steel | Ceramic |
| Diameter | 42.5 mm | 42.6 mm |
| Seiko HBF003J1 is 0.1 mm larger | ||
| Movement | Automatic | Automatic |
| Caliber | unknown | unknown |