Comparison
Seiko HDB006 vs Seiko SRE021
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 belong to the Seiko 5 Sports family.
- Both use an automatic movement.
- Both cases are stainless steel.
| Spec | HDB006 | SRE021 |
|---|---|---|
| Brand | Seiko | Seiko |
| Family | 5 Sports | 5 Sports |
| Reference | HDB006 | SRE021 |
| Production start | unknown | unknown |
| Production end | unknown | unknown |
| Status | Current | Current |
| Retail price | unknown | unknown |
| Case material | Stainless steel | Stainless steel |
| Diameter | 41 mm | unknown |
| Movement | Automatic | Automatic |
| Caliber | unknown | unknown |