Seiko Cal. 6391 - 190

The Seiko 6391-190 represents an important milestone in Seiko's 1975 lineup. It features a Silver dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-6258895d8d4d]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1975

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