Seiko Cal. 6639 - 980

This Spring Drive model from 1982 features a 42mm Stainless Steel case. With its 18mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-61e16ba50ecc]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1982

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