Seiko Cal. 5231 - 212

This Quartz model from 1975 features a 40mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-ea6d11c8ef15]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1975

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