




Seiko Prospex SPB379 Alpinist GMT Black Dial Automatic Watch
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Collection
The SPB379 represents the first mechanical GMT Alpinist watch in regular production, bringing dual-time functionality to Seiko's legendary mountaineering collection.
The 39.5mm stainless steel case with super-hard coating houses the in-house caliber 6R54, the first mechanical GMT movement in a Prospex watch to feature a three-day power reserve. The distinctive red-tipped GMT hand operates independently as an "office GMT," allowing hour-by-hour adjustments without interrupting the primary timekeeping. Beyond dual-time tracking, this hand serves as a crucial day-night indicator for explorers in conditions where distinguishing day from night becomes impossible, essential for cave exploration or polar expeditions.
The matte black dial features transferred silvery-white markers, while the inner rotating compass bezel maintains the collection's traditional navigation capability. A curved sapphire crystal with anti-reflective coating enhances visibility, and the watch achieves 200-meter water resistance through screwdown crown construction.
The SPB379 represents the first mechanical GMT Alpinist watch in regular production, bringing dual-time functionality to Seiko's legendary mountaineering collection.
The 39.5mm stainless steel case with super-hard coating houses the in-house caliber 6R54, the first mechanical GMT movement in a Prospex watch to feature a three-day power reserve. The distinctive red-tipped GMT hand operates independently as an "office GMT," allowing hour-by-hour adjustments without interrupting the primary timekeeping. Beyond dual-time tracking, this hand serves as a crucial day-night indicator for explorers in conditions where distinguishing day from night becomes impossible, essential for cave exploration or polar expeditions.
The matte black dial features transferred silvery-white markers, while the inner rotating compass bezel maintains the collection's traditional navigation capability. A curved sapphire crystal with anti-reflective coating enhances visibility, and the watch achieves 200-meter water resistance through screwdown crown construction.
Every new Seiko purchased at Skeie's is backed by their 3-year warranty
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THE SKEIES EXPERIENCE
Frequently Asked Questions
We take all jewelry and watches in for review and estimation before beginning any work; the review is complimentary and we will always approve estimates with you before we begin any work.
We cannot give price estimates over the phone or online, as every piece can var
We have a team of expert goldsmiths and jewelers on site, and can work on a large range of repair needs.
Common repairs include ring sizing, polishing, rhodium plating, adjusting chain length, replacing clasps, re-stringing services, and more.
There is no appointment necessary to drop off your items for review and estimates.
Since we're located in Eugene, Oregon, we do NOT charge sales tax. The prices you see are the prices you pay!
We offer free shipping on all orders over $500. Our standard shipping is 2-7 days; all items are fully insured and require a signature upon delivery.
Articles are accepted for credit or exchange in the U.S. if returned in salable condition within 30 days, accompanied by a sales receipt. Some exclusions may apply.