Seiko Cal. 4421 - 861

This Kinetic model from 1973 features a 40mm PVD Black case. Powered by the 4421 caliber with 28j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-8d2099879ab3]

Also known as: Samurai, Sumo

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1973

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