Seiko Cal. 4432 - 420

This Spring Drive model from 1972 features a 45mm PVD Black case. With its 21mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-7c2386aa611b]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1972

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