Seiko Cal. 5231 - 818

This Hand-Winding model from 1979 features a 42mm Two-Tone case. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-16cf4fb03b20]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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