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Seiko SPB381

Seiko SPB381

Prospex Diver GMT 1968 Modern Re-Interpretation

Retail $1,500

What Should You Pay?

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

New / Like New / Full Kit
$858 – $1,114
medium confidence
Excellent / Pre-Owned
$703 – $913
medium confidence
Used / Watch Only
$541 – $703
medium confidence
Fair Market Value
$808
Blended estimate for excellent condition
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The Seiko Prospex SPB381 is a modern re-interpretation of the 1968 diver's watch, featuring a GMT complication. It features a green dial and stainless steel construction, powered by the automatic caliber 6R54 with a 72-hour power reserve. With a 42mm case and 200m water resistance, it's a capable dive watch with added functionality of a GMT.

Specifications
Case Diameter 42 mm
Case Height 12.9 mm
Case Material stainless steel
Case Shape round
Case Back screw_down
Water Resistance 200m
Crystal sapphire
Bezel Type rotating_unidirectional
Bezel Material stainless steel
Dial Color green
Dial Indexes applied
Bracelet/Strap oyster
Bracelet Material stainless steel
Clasp deployant
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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