Seiko Cal. 5681 - 321

This Kinetic model from 1980 features a 40mm PVD Black case. With its 18mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-e622e4dac97f]

Also known as: Bellmatic, Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1980

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