Seiko Cal. 5233 - 437

This Spring Drive model from 1971 features a 37mm Stainless Steel case. With its 19mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-9696edac2aaf]

Also known as: Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1971

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