Compare Studio
SBDC001 vs SPB101
Differences are highlighted. Rows where both references share a value are dimmed.
| Specification | ||
|---|---|---|
| Production | 2007–2018 | 2019–present |
| Era | First Sumo (6R15) | Sapphire 6R35 Sumo |
| Status | discontinued | current |
| Case diameter | 45mm | 45mm |
| Thickness | 13.3mm | — |
| Lug width | 20mm | — |
| Case material | Stainless steel | Stainless steel |
| Bezel | Unidirectional 60-minute | Unidirectional 60-minute |
| Crystal | Hardlex | Sapphire |
| Crown | Screw-down crown at 4 | Screw-down crown at 4 |
| Water resistance | 200m | 200m |
| Dial | Black | Black |
| Hands | Sword hour hand with arrow minute hand | — |
| Lume | LumiBrite | LumiBrite |
| Lume type | LumiBrite | LumiBrite |
| Movement | Automatic | Automatic |
| Caliber | 6R15 | 6R35 |
| Manufacturer | Seiko | Seiko |
| Winding | automatic | automatic |
| Power reserve | ~50 hours | ~70 hours |
| Frequency | 21,600 vph | — |
| Jewels | 23 | — |
| Complications | Date, hacking, hand-winding | Date |