Seiko Cal. 6628 - 831

The Seiko 6628-831 represents an important milestone in Seiko's 1973 lineup. With its 19mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-f4bcd5a38f3f]

Also known as: Tuna, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1973

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