Seiko Cal. 4420 - 320

This Solar model from 1976 features a 42mm Gold-Plated case. It features a Green dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-11a28793c8b5]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1976

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