Seiko Cal. 6668 - 361

The Seiko 6668-361 represents an important milestone in Seiko's 1970 lineup. With its 19mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-0667473e8ba5]

Also known as: UFO, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1970

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