Seiko Cal. 3811 - 674

The Seiko 3811-674 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-517ab5930fe9]

Also known as: UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1980

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