Seiko Cal. 5638 - 887

The Seiko 5638-887 represents an important milestone in Seiko's 1992 lineup. With its 20mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-59989af9a5c9]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1992

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