Seiko Cal. 4569 - 818

This Spring Drive model from 1972 features a 42mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-eb59be7c9edd]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1972

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