Seiko Cal. 3866 - 660

Released in 1978, the Cal. 3866 with design code 660 was part of Seiko's domestic market collection. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3a1023fe52bd]

Also known as: Crown, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1978

Related Models

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