Seiko Cal. 3879 - 647

The Seiko 3879-647 represents an important milestone in Seiko's 1983 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-80f14ae2442e]

Also known as: Helmet, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1983

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