Seiko Cal. 5650 - 381

The Seiko 5650-381 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-a749eb3ad9ef]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1987

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