Seiko Cal. 4578 - 473

This Hand-Winding model from 1990 features a 36mm Hardlex-Coated Steel case. With its 18mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-90d80eab2bdd]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1990

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