Seiko Cal. 3811 - 731

The Seiko 3811-731 represents an important milestone in Seiko's 1990 lineup. With its 20mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-b4ab0fbeb434]

Also known as: UFO, Goldfeather

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1990

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