Seiko Cal. 4428 - 598

This Quartz model from 1967 features a 37mm Stainless Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-fa7142d1d935]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1967

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