Seiko Cal. 6637 - 194

Released in 1991, the Cal. 6637 with design code 194 was part of Seiko's domestic market collection. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-cf24910bc48b]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1991

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