Seiko Cal. 5631 - 362

This Automatic model from 1971 features a 35mm Titanium case. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-32dca9a2c6b5]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1971

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