Seiko Prospex Alpinist SPB121 strap size
This page contains affiliate links. I earn a commission if you buy through them, at no extra cost to you. Details. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, I may be compensated if you make a purchase through eBay links.
20mm lug width. The Seiko Prospex Alpinist SPB121 (SPB121) has a 20mm lug width and a 39.5mm case, so it takes 20mm straps.
| Brand | Seiko |
|---|---|
| Model | Prospex Alpinist SPB121 |
| References | SPB121 |
| Case size | 39.5mm |
| Lug width | 20mm |
| Stock bracelet or strap | Leather strap or steel bracelet |
| Strap styles that work | Leather, NATO, Canvas |
Fit notes
Seiko lists 20mm between the lugs on the Alpinist.
Shop straps that fit
- 20mm leather strap on Amazon
- 20mm nato strap on Amazon
- 20mm canvas strap on Amazon
- Prospex Alpinist SPB121 straps on eBay
Want more options? See every 20mm watch in the finder.