Seiko Cal. 4566 - 964

The Seiko 4566-964 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-c09b860cab95]

Also known as: Sumo, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1971

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