Seiko Cal. 5691 - 883

The Seiko 5691-883 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-a1a858b3ef69]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1981

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