Seiko Cal. 5691 - 861

This Quartz model from 1981 features a 40mm PVD Black case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1992c156bd75]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1981

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