Seiko Cal. 3870 - 937

The Seiko 3870-937 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-ec31adad9b0f]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1981

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