Seiko
SPB507
The Seiko Prospex Alpinist ref. SPB121 pairs a black dial with rugged functionality. In a 39.5mm stainless steel case, it houses the automatic Calibre 6R55 with a 72-hour power reserve.
Features include Lumibrite hands and markers, sapphire crystal with magnifier, rotating compass bezel, screw-down crown, see-through case back, and a 20mm leather strap. With 20-bar water resistance and 4,800 A/m magnetic resistance, it’s 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 | Green |
| Dial Indicators | Applied |
| Bracelet | |||
| Strap Material | Leather | ||
| Clasp Material | Stainless Steel | ||
