Seiko Cal. 6680 - 690

The Seiko 6680-690 represents an important milestone in Seiko's 1975 lineup. Powered by the 6680 caliber with 23j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-bf9499522dd4]

Also known as: UFO, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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