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.
in 1 offers
The lowest price for Seiko Men's Prospex Alpinist GMT Watch right now is $1,629.00 at Chrono24.com.au.
The all-time low was $823.19 on 9 Oct 2026 — today's price is 98% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 2 Nov 2026.
Seiko Men's Prospex Alpinist GMT Watch
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.
Last updated at 02/11/2026 05:15:00
Seiko Alpinist SPB379J1 Steel Black 39mm
Delivery $85
| Battery Life | three full days |
| Display Type | Analog |
| Touch Screen | No |
| Water Resistance | 20 ATM |
| Waterproof | Yes |
Seiko Alpinist SPB379J1 Steel Black 39mm
Delivery $85
| Battery Life | three full days |
| Display Type | Analog |
| Touch Screen | No |
| Water Resistance | 20 ATM |
| Waterproof | Yes |
