Seiko Cal. 4431 - 209

The Seiko 4431-209 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a3f06307fedb]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1974

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