Seiko Cal. 6643 - 694

The Seiko 6643-694 represents an important milestone in Seiko's 1991 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-1138ea9fc3ff]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1991

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