Seiko Cal. 4589 - 918

This Spring Drive model from 1976 features a 39mm Stainless Steel case. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-eb81c4e2242d]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1976

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