Seiko Cal. 6658 - 864

This Spring Drive model from 1978 features a 42mm Two-Tone case. With its 18mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-b9d846085bc8]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1978

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