Seiko Cal. 6657 - 166

This Kinetic model from 1981 features a 35mm PVD Black case. With its 19mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-491e33b628b3]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1981

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