Seiko Cal. 6391 - 109

This Hand-Winding model from 1969 features a 42mm Stainless Steel case. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-7c2928f09b19]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1969

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