Seiko Cal. 6391 - 179

This Automatic model from 1978 features a 43mm Hardlex-Coated Steel case. With its 18mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-155a9d5254f9]

Also known as: Helmet, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1978

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