Seiko Cal. 5634 - 439

The Seiko 5634-439 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-d4ec63eef8b0]

Also known as: World Timer, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1973

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