Seiko Cal. 5638 - 220

The Seiko 5638-220 represents an important milestone in Seiko's 1981 lineup. With its 20mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-c41fcaa01c06]

Also known as: Pogue, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1981

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