Seiko Cal. 7181 - 831

The Seiko 7181-831 represents an important milestone in Seiko's 1979 lineup. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-2a718f11d3db]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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