Seiko Prospex Alpinist Mechanical GMT Black Watch SPB379J1

SKU: 23-31-25113501

Finance options
3 payments of £330.00. No fees.
0% APR Interest for 4 months on orders over £99*
From £18.56 per month 0% APR Interest*.
Store collection
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Derived from the original Seiko 'Alpinist,' beloved by Japanese mountain men in 1959, this watch improves on the Alpinist's design with a focus on legibility. It's practical, with a compass and a super-hard coating for shine and scratch resistance and curved sapphire glass. The in-house 6R54 Calibre is the first Prospex GMT movement with a three-day power reserve for dual time zone tracking. Prospex, short for 'Professional' and 'Specifications,' embodies Seiko's dedication to creating durable, practical timepieces for adventurers and sports enthusiasts. • Powered by the mechanical movement with 24 jewels and a power reserve of up to 72 hours. • Presented on a black leather strap with push button deployment clasp. • Scratch resistant sapphire crystal glass. • 39.5mm case width. • 200 metre water resistance.

General Specifications

Brand Seiko Brand Code SPB379J1
Gender Mens Packaging Official Seiko Packaging
Warranty 2 Year Seiko Warranty Limited Edition No
Model Variant Prospex


Product Type Watch Watch Style Classic
Strap Colour Black Case Colour Silver
Case Material Stainless Steel Case Shape Round
Case Depth 13.6mm Case Width 39.5mm
Watch Display Analogue Glass Type Sapphire Crystal Glass
Color Black Dial Colour Black
Water Resistance 200 metres Watch Movement Mechanical
Clasp Type Push Button Deployment Clasp Bezel Material Stainless Steel
Bezel Type Fixed Case Back Sapphire Crystal
Hour Markers Arabic Numerals & Batons Jewels 24
Lug Width 20mm Power Reserve 72 hours
Stone Colour No Stone Stone Type No Stone


Alarm No Back Light No
Chronograph No Chronometer No
Date Yes Luminescent Dial Or Hands Yes
Tachymeter No

Product Information

Our code 233125113501

Delivery & Returns

Orders placed before 5pm, Sunday to Thursday, will be dispatched the following day*. Orders sent by Special Delivery should arrive the following day from dispatch**.

FREE delivery for all full price orders over £35, FREE Special Delivery for all full price orders over £100. All sent signed for through the Royal Mail.

We also offer a simple returns process.

Please see our full Delivery details and also check our Returns details.