Seiko Cal. 4420 - 143

This Hand-Winding model from 1989 features a 46mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-f9e2f35123b4]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1989

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