Seiko Cal. 4566 - 675

This Spring Drive model from 1965 features a 37mm Gold-Plated case. With its 18mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-61d48a11eeb2]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1965

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