Seiko Cal. 6638 - 293

The Seiko 6638-293 represents an important milestone in Seiko's 1986 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-3175a7ba3802]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1986

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