Seiko Cal. 3811 - 403

The Seiko 3811-403 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-e1f9400fc22e]

Also known as: Bullhead, Rally

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1970

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