Seiko Cal. 6390 - 779

The Seiko 6390-779 represents an important milestone in Seiko's 1981 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-66ef1860ffed]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1981

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