Seiko Cal. 3888 - 633

This Spring Drive model from 1971 features a 40mm Stainless Steel case. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-cc312fef1d2f]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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