A Modern Evolution of a Legendary Explorer

The Seiko Prospex Land Alpinist GMT HBC007J1 builds upon one of Seiko's most celebrated collections, bringing the iconic Alpinist into a new era with the addition of a true mechanical GMT movement. Combining its unmistakable green dial, rotating compass bezel and robust field-watch credentials, this latest Alpinist remains true to its mountaineering heritage while offering enhanced practicality for today's adventurers.

Powered by the advanced Calibre 6R54, the HBC007J1 introduces a dual-time function alongside an impressive three-day power reserve, making it the ideal companion whether navigating mountain trails or travelling across time zones.

The Iconic Alpinist Dial

The rich sunburst green dial is instantly recognisable to Alpinist enthusiasts. Inspired by the forests and landscapes that first gave the collection its purpose, the dial shifts beautifully as it catches the light, offering remarkable depth and character.

Applied gilt-tone indexes and cathedral-style hands remain faithful to the Alpinist's heritage, while a red-tipped GMT hand provides effortless reading of a second time zone. The internal rotating compass ring, operated via the secondary crown, remains one of the defining features of the Alpinist collection, allowing the wearer to orient themselves using the sun when outdoors.

Mechanical GMT Calibre 6R54

At the heart of the HBC007J1 is Seiko's Calibre 6R54, an automatic GMT movement designed for reliability and everyday performance.

The movement offers:

• Automatic with manual winding
• Approx. 72-hour (3-day) power reserve
• 24 jewels
• GMT (dual-time) function
• Stop seconds function for precise time setting
• Accuracy of +25/-15 seconds per day

The addition of a dedicated GMT hand allows travellers to track a second time zone while maintaining the robust dependability expected from Seiko's Prospex collection.

Built for Adventure

Designed to withstand demanding environments, the Alpinist features a 39.5mm stainless steel case protected by Seiko's Super-Hard Coating, offering increased resistance to scratches and everyday wear.

A curved sapphire crystal with anti-reflective coating ensures excellent legibility, while Lumibrite-coated hands and indexes remain highly visible in poor light. Water resistance to 200 metres (20 bar), a screw-down crown and a screw-down exhibition case back provide confidence wherever your adventures take you.

Heritage Meets Contemporary Exploration

Originally developed for Japanese mountaineers in the late 1950s, the Alpinist has become one of Seiko's most iconic field watches. The HBC007J1 honours that legacy while embracing modern travel with its GMT functionality, offering a compelling balance of heritage styling and contemporary engineering.

Whether exploring new landscapes or navigating daily life, the Alpinist GMT remains a dependable and characterful companion.

Key Features

• Reference: HBC007J1
• Collection: Seiko Prospex Land Alpinist
• Seiko Calibre 6R54
• Automatic mechanical movement with manual winding
• Approx. 72-hour (3-day) power reserve
• GMT (dual-time) function
• 24-hour GMT hand
• Stop seconds function
• 24 jewels
• 39.5mm stainless steel case
• Super-Hard Coating
• Green sunburst dial
• Date display
• Internal rotating compass bezel
• Curved sapphire crystal
• Anti-reflective coating on inner surface
• Lumibrite hands and indexes
• Brown leather strap
• Three-fold clasp with push-button release
• Screw-down crown
• Exhibition screw case back
• Water resistant to 200 metres (20 bar)
• Magnetic resistance: 4,800 A/m
• Made in Japan