Seiko Cal. 4581 - 631

The Seiko 4581-631 represents an important milestone in Seiko's 1997 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-e582880e97ab]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1997

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