Seiko Cal. 5638 - 934

The Seiko 5638-934 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-e20998af96ab]

Also known as: Tuna, Crown

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1987

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