Seiko Cal. 4428 - 779

This Hand-Winding model from 1985 features a 42mm Stainless Steel case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-e168368b623a]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1985

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