Seiko Cal. 6636 - 422

This Spring Drive model from 1966 features a 46mm Stainless Steel case. With its 20mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-edb8022498b4]

Also known as: Rally, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1966

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