Seiko Cal. 5656 - 291

The Seiko 5656-291 represents an important milestone in Seiko's 1988 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-9ccc914ead80]

Also known as: UFO, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1988

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• Seiko 5678-291