Seiko Cal. 5631 - 446

This Spring Drive model from 1982 features a 36mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-0d467738eaa9]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1982

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