Seiko Cal. 5638 - 806

The Seiko 5638-806 represents an important milestone in Seiko's 1986 lineup. With its 20mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-018a46bf491d]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1986

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