
Originally introduced in 1959 for Japanese "Yama-otoko" (mountain men), the modern Seiko Alpinist (SARB017 / SPB121) features an emerald green dial, gold cathedral hands, and an internal rotating compass ring.

Hand-verified for Seiko Prospex Alpinist "Alpinist" (20mm lug width, standard lugs).

Seiko Prospex Alpinist "Alpinist" Crocodile Strap Fitment Guide: For black-tie elegance and boardroom authority, dress the Seiko Prospex Alpinist "Alpinist" in genuine or embossed 20mm crocodile and alligator grain leather straps with distinctive scale patterns.
Lug Width & Architecture: The Seiko Prospex Alpinist "Alpinist" features a 20mm lug width. Every strap listed above is matched to ensure structural clearance, spring-bar alignment, and visual balance.