Seiko Cal. 4431 - 383

The Seiko 4431-383 represents an important milestone in Seiko's 1975 lineup. With its 20mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-1e4c0d756145]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1975

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