Seiko Cal. 4542 - 580

This Spring Drive model from 1979 features a 35mm Hardlex-Coated Steel case. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-01194915e624]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1979

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