Seiko Cal. 6670 - 381

The Seiko 6670-381 represents an important milestone in Seiko's 1981 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-f92dd0199cd3]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1981

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