Seiko Cal. 4439 - 948

This Spring Drive model from 1975 features a 39mm Stainless Steel case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-69740d575550]

Also known as: Rally, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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