Seiko Cal. 6391 - 179

This Quartz model from 1975 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-2385c27c3f3e]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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