Seiko Cal. 4431 - 456

The Seiko 4431-456 represents an important milestone in Seiko's 1967 lineup. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-99aebcd1bbc7]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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