Seiko Cal. 6691 - 717

The Seiko 6691-717 represents an important milestone in Seiko's 1979 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2b35509b35dd]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1979

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