Seiko Cal. 5691 - 555

The Seiko 5691-555 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-270ba7805f91]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1971

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