Seiko Cal. 4428 - 900

This Spring Drive model from 1971 features a 38mm Stainless Steel case. With its 18mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-1d5904f92fb7]

Also known as: Rally, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1971

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