Seiko Cal. 4578 - 559

The Seiko 4578-559 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-a0cb45900122]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1970

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