Seiko Cal. 6639 - 666

This Quartz model from 1997 features a 45mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-fe3f5ad885d5]

Also known as: UFO, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1997

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