Seiko Cal. 4422 - 912

The 4422-912 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4422 caliber with 21j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-91abc804027b]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1991

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