Seiko Cal. 6691 - 898

Released in 1967, the Cal. 6691 with design code 898 was part of Seiko's domestic market collection. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-0555bd49eb14]

Also known as: Sumo, Shogun

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1967

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