Seiko Prospex Alpinist GMT - SPB377J1

The Seiko Prospex Alpinist GMT SPB409J1 is the latest iteration of an iconic line that has been part of Seiko's lineup for over 60 years, now as a mechanical GMT!

It has proven to take a unique spot in Seiko's tremendous line-up, as it's truly a watch aimed at adventurers and blends several styles together. When it comes to watches, most manufacturers, especially the big ones, tend to think in styles, such as dress, sports, aviation, diving, etc. and Seiko left that all behind when they came up with this model. 

Now, if you are a capable cook you may know that when you blend 2 very tasty ingredients it's no guarantee for success. In fact, it tends to be either really bad or really good. The Alpinist marks one of those times where several tasty ingredients become even tastier, by not thinking of styles and groups, but rather creating and experimenting with an open mind.

Movement

Caliber Number

6R54

Movement Type

Automatic with manual winding capacity

Accuracy

+25 to -15 seconds per day

Duration

Approx. 72 hours

Exterior

Case Material

Stainless steel (super hard coating)

Crystal

Curved sapphire crystal

Crystal Coating

Anti-reflective coating on inner surface

LumiBrite

Lumibrite on hands and indexes

 

 

Other Details

Water Resistance

20 bar

Case Size

Thickness: 13.6 ㎜

Diameter: 39.5 ㎜

Length: 46.4 ㎜

Weight

156.0 g

Other Specifications

Screw-down crown

See-through & Screw case back

Other Features

24-hour hand (dual time display function)

Stop seconds hand function