Seiko Cal. 6642 - 668

The Seiko 6642-668 represents an important milestone in Seiko's 1973 lineup. With its 18mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-970fe3bd52c5]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1973

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