Seiko Cal. 3866 - 973

The 3866-973 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-fe262ce63eb1]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1999

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