Seiko Cal. 4421 - 426

Released in 1968, the Cal. 4421 with design code 426 was part of Seiko's domestic market collection. With its 20mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-61fa2aeb6141]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1968

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