Seiko Cal. 6668 - 531

The Seiko 6668-531 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-8a87f52fe175]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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