Seiko Cal. 5639 - 522

The Seiko 5639-522 represents an important milestone in Seiko's 1977 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-2afb55416892]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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