Seiko Cal. 6643 - 840

This Spring Drive model from 1992 features a 43mm Gold-Plated case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-76ff4367a52f]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1992

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