Seiko Cal. 4422 - 397

The 4422-397 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4422 caliber with 32j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-b10d26a92bd5]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1981

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