Seiko Cal. 4591 - 143

This Spring Drive model from 1984 features a 39mm Hardlex-Coated Steel case. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-4602e04d6a05]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1984

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