Seiko Cal. 4428 - 620

This Spring Drive model from 1990 features a 44mm Two-Tone case. With its 22mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-ceb771f99d79]

Also known as: Silverwave, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1990

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