Seiko Cal. 5231 - 558

This Automatic model from 1975 features a 40mm Hardlex-Coated Steel case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ea55faa9a224]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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