Seiko
SPB503
The Seiko Prospex Alpinist ref. SPB121 features a striking blue dial that pairs rugged capability with refined style. Housed in a 39.5mm stainless steel case, it’s powered by the automatic Calibre 6R55 with a 72-hour power reserve.
With Lumibrite markers, sapphire crystal with magnifier, rotating compass bezel, and 20-bar water resistance, this Alpinist is a modern classic built for adventure and everyday wear.
| Movement | |
| Type | Automatic |
| Calibre | 6R55 |
| No. of Jewels | 24 |
| Power Reserve | 72 hours |
| Case | |
| Case Material | Stainless Steel |
|
Case Diameter Case Thickness |
39.5 mm 12.7 mm |
| Water Resistance | 200m |
| Crystal |
|
| Dial Colour | Blue |
| Dial Indicators | Applied |
| Bracelet | |||
| Bracelet Material | Stainless Steel | ||
| Clasp Material | Stainless Steel | ||
