Seiko Cal. 6635 - 976

This Spring Drive model from 1980 features a 40mm Stainless Steel case. With its 18mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-ddfbb11e0572]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1980

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