Seiko Cal. 4581 - 138

The Seiko 4581-138 represents an important milestone in Seiko's 1967 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-48f8643d5324]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1967

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