Seiko Cal. 7138 - 831

This Automatic model from 1976 features a 40mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-974d0290ca10]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1976

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