Seiko Cal. 6647 - 596

This Spring Drive model from 1978 features a 39mm Stainless Steel case. With its 20mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-d5aeac6c2f44]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1978

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