Seiko Cal. 6181 - 391

This Spring Drive model from 1990 features a 41mm Hardlex-Coated Steel case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-3539032f9459]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1990

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