Seiko Cal. 6638 - 826

This Spring Drive model from 1990 features a 46mm Gold-Plated case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-9a258d5b07c5]

Also known as: Silverwave, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1990

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