Seiko Cal. 5637 - 589

The Seiko 5637-589 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-9347392dbdb0]

Also known as: Samurai, Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1985

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