Seiko Cal. 5221 - 904

The Seiko 5221-904 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-fab627aa1af7]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

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