Seiko Cal. 5679 - 551

The Seiko 5679-551 represents an important milestone in Seiko's 1979 lineup. With its 21mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-1fe9899cda80]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1979

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