Seiko Cal. 4428 - 439

This Automatic model from 1971 features a 35mm PVD Black case. Powered by the 4428 caliber with 22j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-485fab050732]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1971

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