Seiko Cal. 6629 - 836

This Spring Drive model from 1966 features a 41mm Stainless Steel case. With its 20mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-3cd946880958]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1966

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