Front View Seiko Watches Prospex Alpinist GMT SPB379
A Seiko Luxe Watches Prospex Alpinist GMT SPB379 wristwatch, featuring a black leather strap and black dial, is showcased in a close-up view against a breathtaking mountain landscape with snow-capped peaks and rugged terrain. This mechanical sports watch captures the spirit of adventure and precision, making it an ideal companion for exploring the great outdoors.
A close-up of a wrist wearing the Seiko Luxe Watches Prospex Alpinist GMT SPB379, featuring a black leather strap and black dial with the time displayed as 10:09. The person is dressed in a light sweater and dark coat.
A Seiko Watches Prospex Alpinist GMT SPB379 by Seiko Luxe Watches with a black leather strap rests on a rustic wooden surface, surrounded by a cup, a knife, and other outdoor accessories.
A side view of the Seiko Watches Prospex Alpinist GMT SPB379 by Seiko Luxe Watches, featuring a black leather strap and a silver case, is displayed against a light purple background. The watch face is not visible.
A Seiko Luxe Watches Prospex Alpinist GMT SPB379 wristwatch displayed from the back, highlighting its transparent case, automatic movement, and brown leather strap with a black buckle—a refined mechanical sports watch crafted for the discerning adventurer.
The Seiko Luxe Watches Prospex Alpinist GMT SPB379 features a black dial, silver case, black leather strap, and dual crowns. Its face showcases Arabic numerals, a red-tipped second hand, and prominent GMT markings—all signature elements of an elegant GMT timepiece—set against a sophisticated dark gradient background.
The Seiko Watches Prospex Alpinist GMT SPB379 by Seiko Luxe Watches is displayed next to a Google business listing for Lexor Miami, a sunglasses and watch store. The listing showcases store photos, reviews, contact information, and operating hours. The automatic GMT timepiece appears prominently alongside the Seiko Luxe Watches and Google review logos at the bottom.
Front View Seiko Watches Prospex Alpinist GMT SPB379 A Seiko Luxe Watches Prospex Alpinist GMT SPB379 wristwatch, featuring a black leather strap and black dial, is showcased in a close-up view against a breathtaking mountain landscape with snow-capped peaks and rugged terrain. This mechanical sports watch captures the spirit of adventure and precision, making it an ideal companion for exploring the great outdoors. A close-up of a wrist wearing the Seiko Luxe Watches Prospex Alpinist GMT SPB379, featuring a black leather strap and black dial with the time displayed as 10:09. The person is dressed in a light sweater and dark coat. A Seiko Watches Prospex Alpinist GMT SPB379 by Seiko Luxe Watches with a black leather strap rests on a rustic wooden surface, surrounded by a cup, a knife, and other outdoor accessories. A side view of the Seiko Watches Prospex Alpinist GMT SPB379 by Seiko Luxe Watches, featuring a black leather strap and a silver case, is displayed against a light purple background. The watch face is not visible. A Seiko Luxe Watches Prospex Alpinist GMT SPB379 wristwatch displayed from the back, highlighting its transparent case, automatic movement, and brown leather strap with a black buckle—a refined mechanical sports watch crafted for the discerning adventurer. The Seiko Luxe Watches Prospex Alpinist GMT SPB379 features a black dial, silver case, black leather strap, and dual crowns. Its face showcases Arabic numerals, a red-tipped second hand, and prominent GMT markings—all signature elements of an elegant GMT timepiece—set against a sophisticated dark gradient background. The Seiko Watches Prospex Alpinist GMT SPB379 by Seiko Luxe Watches is displayed next to a Google business listing for Lexor Miami, a sunglasses and watch store. The listing showcases store photos, reviews, contact information, and operating hours. The automatic GMT timepiece appears prominently alongside the Seiko Luxe Watches and Google review logos at the bottom.

Seiko Watches Prospex Alpinist GMT SPB379

SKU: SPB379

$1,150.00

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Seiko Watches Prospex Alpinist GMT SPB379

The Seiko Prospex Alpinist GMT SPB379 brings together Seiko’s legendary Alpinist heritage, mechanical watchmaking, and practical GMT functionality in a refined sports watch designed for modern explorers. Inspired by the original Alpinist introduced in 1959 as Seiko’s first sports watch, this Prospex model carries forward the collection’s distinctive combination of rugged performance and sophisticated everyday style.

At its heart is Seiko’s Caliber 6R54 automatic GMT movement, a mechanical movement with manual winding capability, a 24-hour GMT hand for tracking a second time zone, and an approximately 72-hour power reserve. The red-tipped 24-hour hand and 24-hour scale provide clear dual-time readability, making the SPB379 particularly appealing to frequent travelers, international professionals, and collectors who value mechanical GMT watches.

The 39.5mm stainless steel case offers a versatile presence on the wrist, while the super-hard coating helps provide additional resistance against everyday wear. A curved sapphire crystal with anti-reflective coating protects the dial and enhances legibility. LumiBrite hands and indexes further improve visibility in low-light conditions.

Adventure-ready construction includes a screw-down crown, rotating compass inner ring, and 20 bar water resistance. While the SPB379 is designed as a Land model rather than a professional dive watch, its 200-meter-class water resistance adds meaningful versatility for an active lifestyle and outdoor use.

Finished with a leather strap and three-fold clasp, the Seiko Prospex Alpinist GMT SPB379 balances comfort, functionality, and distinctive vintage-inspired character. For collectors searching for a Seiko GMT watch, an automatic sports watch, or a versatile luxury timepiece with genuine mechanical heritage, the SPB379 is a compelling addition to any collection.

Shop the Seiko Prospex Alpinist GMT SPB379 at Lexor Miami and experience the combination of Seiko craftsmanship, travel-ready GMT functionality, and enduring Alpinist design.

Key Features

  • Seiko Caliber 6R54 automatic GMT movement with manual winding capability
  • Approximately 72-hour power reserve for extended operation between wears
  • GMT dual-time functionality with a dedicated 24-hour hand
  • 39.5mm stainless steel case designed for versatile everyday wear
  • Super-hard coating on the stainless steel case for enhanced durability
  • Curved sapphire crystal with anti-reflective coating on the inner surface
  • 20 bar / 200-meter water resistance for added outdoor and everyday versatility
  • Rotating compass inner ring inspired by the Alpinist’s adventurous character
  • LumiBrite hands and indexes for enhanced low-light legibility
  • Screw-down crown for added case security
  • Leather strap with three-fold clasp and push-button release for comfortable wear
  • Distinctive Alpinist heritage dating back to Seiko’s original 1959 sports watch

Technical Specifications

Brand: Seiko
Collection: Prospex
Model: Alpinist Mechanical GMT
Reference: SPB379 / SPB379J1
Watch Type: Men's Mechanical GMT / Sports Watch
Movement: Seiko Caliber 6R54
Movement Type: Automatic with manual winding
Jewels: 24
Power Reserve: Approximately 72 hours / 3 days
Accuracy: +25 / -15 seconds per day
GMT Function: 24-hour hand / dual-time display
Stop Seconds: Yes
Case Material: Stainless steel with super-hard coating
Case Diameter: 39.5mm
Case Thickness: 13.6mm
Lug-to-Lug: 46.4mm
Lug Width: 20mm
Crystal: Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
Luminescence: LumiBrite on hands and indexes
Crown: Screw-down
Inner Ring: Rotating compass ring
Water Resistance: 20 bar
Magnetic Resistance: 4,800 A/m
Strap Material: Cow leather
Clasp: Three-fold clasp with push-button release
Case Back: See-through screw case back
Dial: Black
Category: Prospex Land / Mechanical GMT

Specifications verified against Seiko's official product information.

Travel Further. Track More. Wear Seiko.

Make the Seiko Prospex Alpinist GMT SPB379 part of your collection. With its automatic GMT movement, 72-hour power reserve, sapphire crystal, 20-bar water resistance, and iconic Alpinist heritage, it is built for collectors who expect both mechanical craftsmanship and everyday versatility.

Shop the Seiko Prospex Alpinist GMT SPB379 at Lexor Miami today.

 


    At Lexor Miami, we want you to love your purchase. If for any reason you're not satisfied, you may return any unopened and unused merchandise in its original condition and packaging within 30 days of delivery.

    • Return Eligibility
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    - Gift With Purchase must also be returned in original condition to qualify for a full refund.
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    Email us at Info@LexorMiami.com before sending anything back.

    • Return Process
    1. Contact us first at Info@LexorMiami.com to request an RA (Return Authorization).
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    3. Include your packing slip or proof of purchase in the return package.

    Returns without RA may be delayed or not accepted.

    • Return Address:
    Lexor Miami
    2371 NW 20th St
    Miami, FL 33142
    United States

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    Shipping To return your product, you should mail your product to: 2371 NW 20th St, Miami, FL 33142, United States, Miami FL 33142, United States

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