Seiko Cal. 3811 - 938

The Seiko 3811-938 represents an important milestone in Seiko's 1981 lineup. Powered by the 3811 caliber with 19j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-8095ee9f59df]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1981

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