Seiko Cal. 6638 - 589

The Seiko 6638-589 represents an important milestone in Seiko's 1980 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-b18661fd8499]

Also known as: Shogun

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1980

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