Seiko Cal. 5664 - 379

The Seiko 5664-379 represents an important milestone in Seiko's 1975 lineup. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-76acbcc3a79d]

Also known as: Bullhead, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1975

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