Seiko Cal. 4420 - 574

The Seiko 4420-574 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-77af8b389d6d]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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