Seiko Cal. 7131 - 759

This Automatic model from 1974 features a 44mm Hardlex-Coated Steel case. It features a Green dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-fd21bd2d9f2e]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1974

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