Seiko Cal. 6633 - 591

This Spring Drive model from 1970 features a 40mm Gold-Plated case. With its 21mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-1594bb8fb775]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1970

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