Seiko Cal. 3811 - 380

The Seiko 3811-380 represents an important milestone in Seiko's 1973 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f4b219cd614b]

Also known as: Helmet, UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1973

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