Seiko Cal. 6668 - 239

The Seiko 6668-239 represents an important milestone in Seiko's 1978 lineup. Powered by the 6668 caliber with 33j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-f25d67597bb0]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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