Seiko Cal. 5666 - 890

The Seiko 5666-890 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-647d1d5eaf92]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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