Seiko Cal. 6390 - 685

The Seiko 6390-685 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-7acdd8ea8bc0]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1970

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