Seiko Cal. 7131 - 197

This Quartz model from 1966 features a 44mm Stainless Steel case. Powered by the 7131 caliber with 20j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-71fb28fd0f8e]

Also known as: Monster, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1966

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