Seiko Cal. 4531 - 579

The Seiko 4531-579 represents an important milestone in Seiko's 1967 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-4a433d7485a7]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1967

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