Seiko Alpinist SPB121 vs Seiko Presage SSA391
Specifications
Marked rows differ| Case | ||
| Case diameter | 39.5 mm | 42.4 mm |
|---|---|---|
| Thickness | — | 14.5 mm |
| Water resistance | 200 m | 100 m |
| Movement | ||
| Movement | automatic | Automatic, hand-winding capable |
| Caliber | 6R35 | 4R37 |
| Price | ||
| Launch MSRP | $725 | — |
| Details | ||
| Crystal | sapphire | — |
| Lume | Lumibrite | — |
Sources
Verified · 10 referencesEvery spec on this page was independently checked against the sources below before publishing.