Seiko Cal. 6641 - 568

This Spring Drive model from 1970 features a 40mm Stainless Steel case. With its 22mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-79ebace7bd1c]

Also known as: Navigator, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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