Seiko Cal. 5637 - 381

This Automatic model from 1976 features a 42mm Stainless Steel case. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-986eadcc81da]

Also known as: UFO, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1976

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