Seiko Cal. 6636 - 767

This Quartz model from 1971 features a 41mm Stainless Steel case. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-8eadfb038bda]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1971

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