Seiko Cal. 6686 - 317

The Seiko 6686-317 represents an important milestone in Seiko's 1979 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-f1d9b9c9e83f]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1979

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