Seiko Cal. 4424 - 983

This Hand-Winding model from 1977 features a 35mm PVD Black case. With its 19mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-a40177c2333d]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1977

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