Seiko Cal. 6689 - 580

The Seiko 6689-580 represents an important milestone in Seiko's 1979 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-17d5f7a05e89]

Also known as: Tuna, Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1979

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