Seiko Cal. 5638 - 710

The Seiko 5638-710 represents an important milestone in Seiko's 1980 lineup. With its 22mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-cd060098c505]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1980

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