Seiko Cal. 7131 - 399

This Quartz model from 1972 features a 38mm Hardlex-Coated Steel case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-595dc12ec79b]

Also known as: Monster, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1972

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