Seiko Cal. 5678 - 291

This Quartz model from 1975 features a 37mm PVD Black case. With its 19mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-6f973aa36396]

Also known as: Helmet, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1975

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