Seiko Cal. 6399 - 406

This Spring Drive model from 1986 features a 35mm Two-Tone case. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-116f61ee5ce6]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1986

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