Seiko · Prospex · Frontalansicht Zifferblatt laufender Sekundenzeiger Seiko Prospex SNJ025-P1 2020 — VSchagow · CC BY-SA 4.0

Seiko Prospex Current

SPB381J1

Seiko SPB381J1

Diameter: unknown
Movement: Automatic
Case: Ceramic
Produced: unknown

Specifications

Value · source

Production start year: unknown; no source
Production end year: unknown; no source
Status: Current; Manufacturer 70% source
Retail price: unknown; no source
Case material: ceramic; Manufacturer 90% source
Diameter (mm): unknown; no source
Movement type: Automatic; Manufacturer 90% source

Fit & dimensions

Value · source

Lug to lug (mm): 48.6; Manufacturer 90% source
Case thickness (mm): unknown; no source
Lug width (mm): unknown; no source
Water resistance (m): 200; Manufacturer 90% source
Crystal material: Sapphire; Manufacturer 90% source
Caseback: unknown; no source

Photos

Freely licensed photos from Wikimedia Commons, credited to their authors. These show the Prospex family — they may show a different reference.

Seiko · Prospex · Frontalansicht Zifferblatt laufender Sekundenzeiger Seiko Prospex SNJ025-P1 2020 — VSchagow · CC BY-SA 4.0 · Wikimedia Commons

Seiko · Prospex · Seiko Prospex 2026-08-07 Philippines — P1898 · CC BY-SA 4.0 · Wikimedia Commons

Seiko · Prospex · Seiko Prospex Alpinist01bs — 663highland · CC BY-SA 4.0 · Wikimedia Commons

Frequently asked questions

What movement does the Seiko SPB381J1 use?

The Seiko SPB381J1 uses an automatic movement (source: manufacturer).

What is the Seiko SPB381J1 case made of?

The Seiko SPB381J1 has a ceramic case (source: manufacturer).

Is the Seiko SPB381J1 still in production?

Yes. The Seiko SPB381J1 is listed as current (source: manufacturer).