Seiko Cal. 4420 - 490

This Spring Drive model from 1984 features a 44mm Stainless Steel case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-b4a3b632767b]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1984

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