Seiko Cal. 6643 - 476

This Spring Drive model from 1984 features a 34mm PVD Black case. With its 22mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-51b1409b194b]

Also known as: UFO, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1984

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