Seiko Cal. 5231 - 588

This Spring Drive model from 1974 features a 35mm PVD Black case. With its 22mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-94852f607aa2]

Also known as: Navigator, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1974

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