The Seiko Prospex Alpinist Mechanical GMT HBC007J1 is designed for exploration, pairing the collection's distinctive outdoor character with practical dual-time functionality. Its 39.5mm stainless steel case features a protective super-hard coating and is secured to a brown leather strap with a push-button deployment clasp. The deep green dial combines Arabic numerals and baton hour markers with LumiBrite hands and indices, while a red-tipped 24-hour hand provides a clear display of a second time zone. A rotating inner compass ring, operated using the additional crown at 4 o'clock, adds another useful navigational feature. The dial is protected by curved sapphire crystal with an anti-reflective coating. Power is supplied by the Seiko calibre 6R54 automatic movement, which offers manual winding, 24 jewels, a stop-seconds function, and an approximate 72-hour power reserve. The movement can be viewed through the sapphire crystal exhibition case back, while a screw-down crown and 200-metre water resistance enhance the watch's durability for outdoor adventures. • Powered by the in-house 6R54 automatic calibre movement with 24 jewels and a power reserve of up to 72 hours • Presented on a brown leather strap with fold over clasp • Curved, scratch resistant sapphire crystal glass with anti-reflective coating on the inner surface • 39.5mm case width & 46.4mm case length measuring from lug to lug • 200 metre water resistance