Seiko Cal. 5663 - 660

This Kinetic model from 1981 features a 42mm Gold-Plated case. With its 18mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-e9d647830cf3]

Also known as: Helmet, World Timer

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1981

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