Seiko Cal. 3866 - 231

The Seiko 3866-231 represents an important milestone in Seiko's 1985 lineup. With its 18mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-bbbd8672837c]

Also known as: Goldfeather, Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1985

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