Seiko Cal. 7031 - 639

This Quartz model from 1974 features a 43mm Two-Tone case. Powered by the 7031 caliber with 28j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-66b357cfb725]

Also known as: Monster, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1974

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