Seiko Cal. 4420 - 997

The 4420-997 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-a092e8e39ec2]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1985

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