Seiko Cal. 3866 - 706

This Automatic model from 1983 features a 42mm Hardlex-Coated Steel case. Powered by the 3866 caliber with 19j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-59c8bfbb98b1]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1983

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