Seiko Cal. 3889 - 640

The Seiko 3889-640 represents an important milestone in Seiko's 1985 lineup. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-d24f623355f0]

Also known as: Shogun, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1985

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