Seiko Cal. 4587 - 491

The Seiko 4587-491 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-34f1d7c9f280]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1973

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