Seiko Cal. 4520 - 822

This Spring Drive model from 1984 features a 34mm Hardlex-Coated Steel case. It features a Cream dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-e81e3ac8e2a8]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1984

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