Seiko Cal. 4431 - 448

This Quartz model from 1968 features a 43mm Hardlex-Coated Steel case. With its 19mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-62ab6aa16d93]

Also known as: Monster, Rally

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1968

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