Seiko Cal. 6668 - 571

The Seiko 6668-571 represents an important milestone in Seiko's 1976 lineup. Powered by the 6668 caliber with 36j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-944a0838e69a]

Also known as: Tuna, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1976

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