Hobby Bot

Seiko SPB379J1

Prospex Alpinist GMT

2023 –present

What Should You Pay?

Estimated fair market values. Actual prices vary by condition, completeness, and seller.

New / Like New / Full Kit
$1,002 – $1,302
high confidence
Excellent / Pre-Owned
$822 – $1,067
high confidence
Used / Watch Only
$633 – $822
high confidence
Fair Market Value
$944
Blended estimate for excellent condition

Recent Comparable Listings

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DateConditionAsking Pricevs MarketDeal
Mar 21Mint$950-17%
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A modern interpretation of the Alpinist line featuring GMT functionality with a 24-hour bezel and red-tipped GMT hand. The watch combines robust 200m water resistance with refined details like a curved sapphire crystal and LumiBrite-treated hands and markers, making it suitable for both outdoor adventures and urban wear.

Specifications
Case Diameter 39.5 mm
Case Material stainless steel
Case Shape round
Case Back screw_down
Water Resistance 200m
Crystal sapphire
Bezel Type rotating_bidirectional
Bezel Material stainless steel
Dial Color black
Dial Indexes applied
Dial Hands sword
Bracelet/Strap metal
Bracelet Material stainless steel
Clasp fold_over
Complications date, gmt
Movement
Movement Caliber 6R54
Type automatic
Power Reserve 72 hours
Frequency 21,600 vph
Jewels 24
Functions hours, minutes, seconds, date, gmt

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