Seiko Cal. 6690 - 880

The Seiko 6690-880 represents an important milestone in Seiko's 1966 lineup. With its 19mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-e39a705c199f]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1966

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