Seiko Cal. 6668 - 289

The 6668-289 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6668 caliber with 34j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-ca079b5e2c1e]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1979

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