Seiko Cal. 6640 - 945

This Quartz model from 1990 features a 43mm PVD Black case. It features a Black dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-65f55a4ecab6]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1990

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