Seiko Cal. 3811 - 918

The Seiko 3811-918 represents an important milestone in Seiko's 1976 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-4388e7bc3535]

Also known as: Bullhead, Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1976

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