Seiko Cal. 5231 - 573

This Quartz model from 1983 features a 45mm Stainless Steel case. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-3c42768b6cbb]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1983

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