Seiko Cal. 4581 - 975

The Seiko 4581-975 represents an important milestone in Seiko's 1975 lineup. With its 20mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-275a4503609c]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1975

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