Seiko Cal. 4443 - 256

This Spring Drive model from 1986 features a 34mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-17c528c96c59]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1986

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