Seiko Cal. 4424 - 382

This Spring Drive model from 1978 features a 46mm PVD Black case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-14f7e13e8263]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1978

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