Seiko Cal. 4578 - 673

The Seiko 4578-673 represents an important milestone in Seiko's 1974 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-a763f0770575]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1974

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