Seiko Cal. 4428 - 366

This Spring Drive model from 1965 features a 37mm Stainless Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-aae24e5cb89b]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1965

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