Seiko Cal. 4472 - 422

This Spring Drive model from 1973 features a 36mm PVD Black case. Powered by the 4472 caliber with 23j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-85142c279321]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1973

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