Seiko Cal. 0766 - 531

The Seiko 0766-531 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-dd47c74fe2e0]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1978

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