Seiko Cal. 4550 - 591

The Seiko 4550-591 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-e4b4e177ff95]

Also known as: Samurai, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1971

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