Seiko Cal. 3866 - 841

This Spring Drive model from 1978 features a 42mm Stainless Steel case. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-6a43a11ad205]

Also known as: UFO, Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1978

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