Seiko Cal. 6634 - 628

This Spring Drive model from 1969 features a 43mm PVD Black case. With its 19mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-04600b294629]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1969

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