Seiko Cal. 4431 - 339

The Seiko 4431-339 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-aa2e502dc336]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1991

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