Seiko Cal. 5638 - 882

The Seiko 5638-882 represents an important milestone in Seiko's 1986 lineup. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-8bfc02ae4ead]

Also known as: Monster, Bullhead

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1986

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