Seiko Watch Prospex Alpinist Mens SPB121J1. The Alpinist model was first launched in 2008 exclusively for the Japanese market. Due to popular demand it is now launched globally with an upgraded technical specification from the original.

The 2020 version has a longer duration calibre and a glass upgrade.

Seiko Prospex watches are designed for sports lovers and adventure seekers whether in the water, in the sky or on land, The Alpinist is classified in the Land category.