Seiko Cal. 6691 - 704

The Seiko 6691-704 represents an important milestone in Seiko's 1975 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-b131bf29ad59]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

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