Seiko Cal. 3866 - 409

This Spring Drive model from 1972 features a 40mm PVD Black case. With its 19mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-524a130c350a]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1972

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