Seiko Cal. 5666 - 930

The 5666-930 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-888acbf2ec24]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1986

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