Seiko Cal. 3866 - 234

This Spring Drive model from 1987 features a 44mm PVD Black case. Powered by the 3866 caliber with 18j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-775cab6ad4c3]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1987

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