Seiko Cal. 3891 - 997

The Seiko 3891-997 represents an important milestone in Seiko's 1982 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-e7bd65a5a739]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1982

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