Seiko Cal. 6664 - 890

The Seiko 6664-890 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-b8930794b3ab]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1978

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