Seiko Prospex Alpinist 39.5mm automatic watch, black dial
SPB505J1
£880
Price at Goldsmiths, checked 28 October 2026. Prices can change: Goldsmiths' page has the final word.
This version: 39.5mm, black dial. Goldsmiths has 3 versions of the Prospex Alpinist in stock: compare them.
39.5mmAutomatic200 m water resistantStainless steelMen's
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Specifications
| Brand | Seiko |
|---|---|
| Model | Prospex Alpinist |
| Reference | SPB505J1 |
| Gender | Men's |
| Style | — |
| Case size | 39.5mm |
|---|---|
| Lug to lug | — |
| Case material | Stainless steel |
| Bezel | — |
| Dial colour | Black |
| Strap | Stainless steel |
Will 39.5mm suit your wrist? Check your size
| Movement | Automatic |
|---|---|
| Calibre | 6R55 |
| Power reserve | 72 hours |
| Water resistance | 200 m |
| Crystal | Sapphire |
| Thickness | — |
| Date | — |
| Guarantee | Seiko 2 Year Guarantee |
A dash means neither Goldsmiths nor Seiko states it on the pages we read, so it's left blank rather than guessed.
Description
Delivery & returns
Other versions of the Seiko Prospex Alpinist
The same watch in 3 versions at Goldsmiths: here's what changes. Prices are Goldsmiths' own, checked daily.