Seiko Cal. 4421 - 228

The Seiko 4421-228 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-7f27028aa3bc]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1971

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