Seiko Cal. 4581 - 409

This Spring Drive model from 1970 features a 40mm Hardlex-Coated Steel case. With its 22mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-738fcecc8bdc]

Also known as: Shogun, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1970

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