Seiko Cal. 6635 - 389

The Seiko 6635-389 represents an important milestone in Seiko's 1980 lineup. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-3811bf6e0e03]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1980

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