Seiko Cal. 6391 - 383

This Hand-Winding model from 1986 features a 35mm Titanium case. With its 22mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-0c5a2feb36c4]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1986

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