Seiko Prospex Alpinist GMT 110th Anniversary Limited Edition SPB409 brand_ball along with a date window

along with a date window at 6H and an opaline Small Seconds subdial featuring an 18K Sedna™ gold ring

a silicon balance-spring

In another first

and dual curved sapphire crystal with anti-reflective coating on the inner surface

Bold and daring

Seiko Prospex Alpinist GMT 110th Anniversary Limited Edition SPB409 brand_ball along with a date windowCelebrating 110 Years of Watchmaking Excellence The long running Seiko Prospex Alpinist has quietly remained a distinctive, highly functional tool watch, marrying dependable timekeeping with the time honored traditions of an inner rotating compass bezel for the wilderness savvy. The next generation of this classical mountaineering instrument is now equipped with a third degree of utility: a 24 hour complication, yielding the new Seiko Prospex Alpinist