Seiko Cal. 6632 - 581

The Seiko 6632-581 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-199c3a82efdf]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1971

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