Seiko Cal. 4431 - 421

The Seiko 4431-421 represents an important milestone in Seiko's 1980 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-8b35e23dee6b]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1980

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