Seiko Cal. 5231 - 901

This Automatic model from 1967 features a 36mm Stainless Steel case. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-8b1e8ac7ea1e]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1967

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