Seiko Cal. 4578 - 529

This Spring Drive model from 1982 features a 39mm Hardlex-Coated Steel case. With its 19mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-79db48183d33]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1982

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