Seiko Cal. 6347 - 990

This Spring Drive model from 1975 features a 35mm Stainless Steel case. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-e20ccc3bf3e2]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1975

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