Seiko Cal. 6391 - 801

This Spring Drive model from 1976 features a 40mm Hardlex-Coated Steel case. With its 21mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-a62b30902cca]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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