Seiko Cal. 3866 - 580

The 3866-580 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-f0c2e0df0032]

Also known as: Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1978

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