Seiko Cal. 4521 - 665

The Seiko 4521-665 represents an important milestone in Seiko's 1974 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-53efc984a67c]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1974

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