Seiko Cal. 4428 - 663

This Spring Drive model from 1965 features a 40mm Stainless Steel case. With its 18mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-3b7cc6fcb324]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

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