Seiko Cal. 4531 - 866

The Seiko 4531-866 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-fa9ac6b2fc6c]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1966

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