Seiko Cal. 4537 - 221

This Spring Drive model from 1975 features a 43mm Stainless Steel case. With its 18mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-5a9ff5eb286f]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1975

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