Seiko Cal. 4421 - 811

The Seiko 4421-811 represents an important milestone in Seiko's 1972 lineup. With its 21mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-40c698723e1e]

Also known as: Helmet, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1972

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