Seiko Cal. 4581 - 140

The Seiko 4581-140 represents an important milestone in Seiko's 1973 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-69783df92279]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1973

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