Seiko Cal. 6637 - 584

This Spring Drive model from 1980 features a 37mm Stainless Steel case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-099b3135efb8]

Also known as: Shogun, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1980

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