Seiko Cal. 6639 - 329

This Spring Drive model from 1987 features a 41mm PVD Black case. With its 19mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-35e0bb5b9682]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1987

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