Seiko Cal. 3891 - 666

This Hand-Winding model from 1981 features a 44mm PVD Black case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-c2a995d3435c]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1981

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