Seiko Cal. 4420 - 922

The Seiko 4420-922 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-67b4a4781ed0]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1971

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