Seiko Cal. 4420 - 622

This Hand-Winding model from 1972 features a 39mm Titanium case. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-e4974a24c930]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

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