Seiko Cal. 3811 - 871

Released in 1967, the Cal. 3811 with design code 871 was part of Seiko's domestic market collection. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-24090ff7cdd4]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1967

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