Seiko Cal. 4420 - 621

This Solar model from 1974 features a 44mm Stainless Steel case. It features a Black dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-8327da2eaa41]

Also known as: Bullhead, Navigator

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1974

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