Seiko Cal. 6663 - 431

The Seiko 6663-431 represents an important milestone in Seiko's 1990 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-d934a812ff9f]

Also known as: Pogue, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1990

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