Seiko Cal. 3866 - 985

The Seiko 3866-985 represents an important milestone in Seiko's 1974 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-cc79fbf35d30]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1974

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