The GMT Alpinist Collectors Have Been Waiting For

Some watches become fan favourites. Others achieve something more and become icons.

For Seiko enthusiasts, the Alpinist is firmly in the latter category.

Originally introduced in 1959 for Japanese mountain climbers, the Alpinist has built a reputation for combining rugged practicality with distinctive design. Over the decades, it has become one of the most recognisable watches in the Seiko Prospex collection, particularly in its famous green-dial form.

Now, Seiko has brought that iconic colourway to its modern GMT platform with the new Seiko Prospex Alpinist Mechanical GMT HBC007J1.

The Return of an Iconic Colour

For many collectors, green and gold are the colours that define the Alpinist.

The HBC007J1 stays true to that heritage, featuring a rich green sunray dial accented by gold-tone hands and hour markers. Combined with the collection's signature cathedral-style hands and internal compass bezel, it immediately feels like an Alpinist.

It's a colour combination that has become synonymous with the collection over the years, making this release particularly exciting for long-time fans.

Building on the Alpinist GMT Story

The HBC007J1 follows the introduction of Seiko's first modern GMT Alpinists, which arrived in 2023 with blue and black dial variants.

Those models marked an important step for the collection, introducing a true GMT complication powered by Seiko's in-house Calibre 6R54 movement. While they were well received, many enthusiasts felt there was one obvious colour missing: green.

With the arrival of the HBC007J1, Seiko has finally paired its GMT functionality with the colourway most closely associated with the Alpinist name.

Adventure-Ready by Design

The Alpinist has always been built for exploration, and the HBC007J1 continues that tradition.

The 39.5mm stainless steel case offers a versatile fit on the wrist, while a super-hard coating helps improve durability. A curved sapphire crystal with anti-reflective coating enhances legibility, and the watch is water resistant to 200 metres.

One of the collection's most distinctive features remains the internal compass bezel, operated via the crown at 4 o'clock. It's a practical nod to the Alpinist's outdoor heritage and a feature that helps set it apart from other GMT watches.

Powered by the Calibre 6R54 GMT Movement

At the heart of the watch is Seiko's automatic Calibre 6R54 movement.

Offering a 72-hour power reserve, the movement allows the wearer to track a second time zone using a dedicated GMT hand, making it ideal for travel, business, or simply keeping track of time elsewhere in the world.

The addition of GMT functionality feels like a natural evolution for a watch designed around adventure and navigation.

Final Thoughts

The new Seiko Prospex Alpinist Mechanical GMT HBC007J1 brings together everything enthusiasts love about the collection.

It combines the proven GMT platform introduced in recent years with the iconic green-and-gold aesthetic that helped make the Alpinist a legend among collectors. The result is a watch that feels familiar, capable, and perhaps most importantly, long overdue.

For those who have been waiting for a green GMT Alpinist, Seiko has finally delivered.