Seiko Cal. 4431 - 341

This Spring Drive model from 1977 features a 38mm Two-Tone case. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-fb725caeba77]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1977

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