Seiko Cal. 5630 - 676

The Seiko 5630-676 represents an important milestone in Seiko's 1972 lineup. With its 21mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-62f00149773f]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1972

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