Seiko Cal. 6643 - 337

This Spring Drive model from 1988 features a 34mm PVD Black case. It features a Cream dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-d64ca67d031e]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1988

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