Seiko Cal. 3897 - 851

The Seiko 3897-851 represents an important milestone in Seiko's 1989 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-8727631c2306]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1989

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