Seiko Cal. 4538 - 157

This Spring Drive model from 1974 features a 37mm PVD Black case. It features a Silver dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-59251a923b81]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1974

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